Add version history and bump project version to 0.19.0

Also ensures back-facing satellite selection prevention is in place

.env

@@ -1,25 +0,0 @@
-# Database
-POSTGRES_SERVER=localhost
-POSTGRES_USER=postgres
-POSTGRES_PASSWORD=postgres
-POSTGRES_DB=planet_db
-DATABASE_URL=postgresql+asyncpg://postgres:postgres@localhost:5432/planet_db
-
-# Redis
-REDIS_SERVER=localhost
-REDIS_PORT=6379
-REDIS_URL=redis://localhost:6379/0
-
-# Security
-SECRET_KEY=your-secret-key-change-in-production
-ALGORITHM=HS256
-ACCESS_TOKEN_EXPIRE_MINUTES=15
-REFRESH_TOKEN_EXPIRE_DAYS=7
-
-# API
-API_V1_STR=/api/v1
-PROJECT_NAME="Intelligent Planet Plan"
-VERSION=1.0.0
-
-# CORS
-CORS_ORIGINS=["http://localhost:3000", "http://localhost:8000"]

.gitignore

@@ -41,6 +41,8 @@ MANIFEST
 venv/
 ENV/
 env/
+.uv/
+.uv-cache/
 .ruff_cache/
 *.db
 *.sqlite

.python-version

@@ -0,0 +1 @@
+3.14

.sisyphus/plans/earth-architecture-refactor.md

@@ -0,0 +1,165 @@
+# 地球3D可视化架构重构计划
+
+## 背景
+
+当前 `frontend/public/earth` 3D地球可视化系统基于 Three.js 构建，未来需要迁移到 Unreal Engine (Cesium)。为降低迁移成本，需要提前做好**逻辑与渲染分离**的架构设计。
+
+## 目标
+
+- 将线缆高亮逻辑与渲染实现分离
+- 保持交互逻辑可复用，只需重写渲染层
+- 为后续迁移到 UE/Cesium 做好准备
+
+## 已完成
+
+### 1. 状态枚举定义 (constants.js)
+
+```javascript
+export const CABLE_STATE = {
+  NORMAL: 'normal',
+  HOVERED: 'hovered',
+  LOCKED: 'locked'
+};
+```
+
+### 2. 线缆状态管理 (cables.js - 数据层)
+
+```javascript
+const cableStates = new Map();
+
+export function getCableState(cableId) { ... }
+export function setCableState(cableId, state) { ... }
+export function clearAllCableStates() { ... }
+export function getCableStateInfo() { ... }
+```
+
+### 3. 逻辑层调用 (main.js)
+
+```javascript
+// 悬停
+setCableState(cable.userData.cableId, CABLE_STATE.HOVERED);
+
+// 锁定
+setCableState(cableId, CABLE_STATE.LOCKED);
+
+// 恢复
+setCableState(cableId, CABLE_STATE.NORMAL);
+clearAllCableStates();
+
+// 清除锁定时
+clearLockedObject() {
+  hoveredCable = null;
+  clearAllCableStates();
+  ...
+}
+```
+
+### 4. 渲染层 (main.js - applyCableVisualState)
+
+```javascript
+function applyCableVisualState() {
+  const allCables = getCableLines();
+  const pulse = (Math.sin(Date.now() * CABLE_CONFIG.pulseSpeed) + 1) * 0.5;
+  
+  allCables.forEach(c => {
+    const cableId = c.userData.cableId;
+    const state = getCableState(cableId);
+    
+    switch (state) {
+      case CABLE_STATE.LOCKED:
+        // 呼吸效果 + 白色
+        c.material.opacity = CABLE_CONFIG.lockedOpacityMin + pulse * CABLE_CONFIG.pulseCoefficient;
+        c.material.color.setRGB(1, 1, 1);
+        break;
+      case CABLE_STATE.HOVERED:
+        // 白色高亮
+        c.material.opacity = 1;
+        c.material.color.setRGB(1, 1, 1);
+        break;
+      case CABLE_STATE.NORMAL:
+      default:
+        if (lockedObjectType === 'cable' && lockedObject) {
+          // 其他线缆变暗
+          c.material.opacity = CABLE_CONFIG.otherOpacity;
+          ...
+        } else {
+          // 恢复原始
+          c.material.opacity = 1;
+          c.material.color.setHex(c.userData.originalColor);
+        }
+    }
+  });
+}
+```
+
+## 待完成
+
+### Phase 1: 完善状态配置 (constants.js)
+
+```javascript
+export const CABLE_CONFIG = {
+  lockedOpacityMin: 0.6,
+  lockedOpacityMax: 1.0,
+  otherOpacity: 0.5,
+  otherBrightness: 0.6,
+  pulseSpeed: 0.003,
+  pulseCoefficient: 0.4,
+  // 未来可扩展
+  // lockedLineWidth: 3,
+  // normalLineWidth: 1,
+};
+```
+
+### Phase 2: 卫星状态管理 (satellites.js)
+
+参考线缆状态管理，为卫星添加类似的状态枚举和状态管理函数：
+
+```javascript
+export const SATELLITE_STATE = {
+  NORMAL: 'normal',
+  HOVERED: 'hovered',
+  LOCKED: 'locked'
+};
+```
+
+#### 卫星数据源说明
+
+- **当前使用**: CelesTrak (https://celestrak.org) - 免费，无需认证
+- **后续计划**: Space-Track.org (https://space-track.org) - 需要认证，数据更权威
+- 迁移时只需修改 `satellites.js` 中的数据获取逻辑，状态管理和渲染逻辑不变
+
+### Phase 3: 统一渲染接口
+
+将所有对象的渲染逻辑抽象为一个统一的渲染函数：
+
+```javascript
+function applyObjectVisualState() {
+  applyCableVisualState();
+  applySatelliteVisualState();
+  applyLandingPointVisualState();
+}
+```
+
+### Phase 4: UE 迁移准备
+
+迁移到 Unreal Engine 时：
+1. 保留 `constants.js` 中的枚举和配置
+2. 保留 `cables.js` 中的数据层和状态管理
+3. 保留 `main.js` 中的交互逻辑
+4. **仅重写** `applyCableVisualState()` 等渲染函数
+
+---
+
+## 架构原则
+
+1. **状态与渲染分离** - 对象状态由数据层管理，渲染层只负责根据状态更新视觉效果
+2. **逻辑可复用** - 交互逻辑（点击、悬停、锁定）在迁移时应直接复用
+3. **渲染可替换** - 渲染实现可以针对不同引擎重写，不影响逻辑层
+
+## 文件变更记录
+
+| 日期 | 文件 | 变更 |
+|------|------|------|
+| 2026-03-19 | constants.js | 新增 CABLE_STATE 枚举 |
+| 2026-03-19 | cables.js | 新增状态管理函数 |
+| 2026-03-19 | main.js | 使用状态管理，抽象 applyCableVisualState() |

.sisyphus/plans/predicted-orbit.md

@@ -0,0 +1,136 @@
+# 卫星预测轨道显示功能
+
+## TL;DR
+> 锁定卫星时显示绕地球完整一圈的预测轨道轨迹，从当前位置向外渐变消失
+
+## Context
+
+### 目标
+点击锁定卫星 → 显示该卫星绕地球一周的完整预测轨道（而非当前的历史轨迹）
+
+### 当前实现
+- `TRAIL_LENGTH = 30` - 历史轨迹点数，每帧 push 当前位置
+- 显示最近30帧历史轨迹（类似彗星尾巴）
+
+### 参考: SatelliteMap.space
+- 锁定时显示预测轨道
+- 颜色从当前位置向外渐变消失
+- 使用 satellite.js（与本项目相同）
+
+## 实现状态
+
+### ✅ 已完成
+- [x] 计算卫星轨道周期（基于 `meanMotion`）
+- [x] 生成预测轨道点（10秒采样间隔）
+- [x] 创建独立预测轨道渲染对象
+- [x] 锁定卫星时显示预测轨道
+- [x] 解除锁定时隐藏预测轨道
+- [x] 颜色渐变：当前位置(亮) → 轨道终点(暗)
+- [x] 页面隐藏时清除轨迹（防止切回时闪现）
+
+### 🚧 进行中
+- [ ] 完整圆环轨道（部分卫星因 SGP4 计算问题使用 fallback 圆形轨道）
+- [ ] 每颗卫星只显示一条轨道
+
+## 技术细节
+
+### 轨道周期计算
+```javascript
+function calculateOrbitalPeriod(meanMotion) {
+  return 86400 / meanMotion;
+}
+```
+
+### 预测轨道计算
+```javascript
+function calculatePredictedOrbit(satellite, periodSeconds, sampleInterval = 10) {
+  const points = [];
+  const samples = Math.ceil(periodSeconds / sampleInterval);
+  const now = new Date();
+  
+  // Full orbit: from now to now+period
+  for (let i = 0; i <= samples; i++) {
+    const time = new Date(now.getTime() + i * sampleInterval * 1000);
+    const pos = computeSatellitePosition(satellite, time);
+    if (pos) points.push(pos);
+  }
+  
+  // Fallback: 如果真实位置计算点太少，使用圆形 fallback
+  if (points.length < samples * 0.5) {
+    points.length = 0;
+    // ... 圆形轨道生成
+  }
+  
+  return points;
+}
+```
+
+### 渲染对象
+```javascript
+let predictedOrbitLine = null;
+
+export function showPredictedOrbit(satellite) {
+  hidePredictedOrbit();
+  // ... 计算并渲染轨道
+}
+
+export function hidePredictedOrbit() {
+  if (predictedOrbitLine) {
+    earthObjRef.remove(predictedOrbitLine);
+    predictedOrbitLine.geometry.dispose();
+    predictedOrbitLine.material.dispose();
+    predictedOrbitLine = null;
+  }
+}
+```
+
+## 已知问题
+
+### 1. TLE 格式问题
+`computeSatellitePosition` 使用自行构建的 TLE 格式，对某些卫星返回 null。当前使用 fallback 圆形轨道作为补偿。
+
+### 2. 多条轨道
+部分情况下锁定时会显示多条轨道。需要确保 `hidePredictedOrbit()` 被正确调用。
+
+## 性能考虑
+
+### 点数估算
+| 卫星类型 | 周期 | 10秒采样 | 点数 |
+|---------|------|---------|------|
+| LEO | 90分钟 | 540秒 | ~54点 |
+| MEO | 12小时 | 4320秒 | ~432点 |
+| GEO | 24小时 | 8640秒 | ~864点 |
+
+### 优化策略
+- 当前方案（~900点 GEO）性能可接受
+- 如遇性能问题：GEO 降低采样率到 30秒
+
+## 验证方案
+
+### QA Scenarios
+
+**Scenario: 锁定 Starlink 卫星显示预测轨道**
+1. 打开浏览器，进入 Earth 页面
+2. 显示卫星（点击按钮）
+3. 点击一颗 Starlink 卫星（低轨道 LEO）
+4. 验证：出现黄色预测轨道线，从卫星向外绕行
+5. 验证：颜色从亮黄渐变到暗蓝
+6. 验证：轨道完整闭环
+
+**Scenario: 锁定 GEO 卫星显示预测轨道**
+1. 筛选一颗 GEO 卫星（倾斜角 0-10° 或高轨道）
+2. 点击锁定
+3. 验证：显示完整 24 小时轨道（或 fallback 圆形轨道）
+4. 验证：点数合理（~864点或 fallback）
+
+**Scenario: 解除锁定隐藏预测轨道**
+1. 锁定一颗卫星，显示预测轨道
+2. 点击地球空白处解除锁定
+3. 验证：预测轨道消失
+
+**Scenario: 切换页面后轨迹不闪现**
+1. 锁定一颗卫星
+2. 切换到其他标签页
+3. 等待几秒
+4. 切回页面
+5. 验证：轨迹不突然闪现累积

.sisyphus/plans/webgl-instancing-satellites.md

@@ -0,0 +1,293 @@
+# WebGL Instancing 卫星渲染优化计划
+
+## 背景
+
+当前 `satellites.js` 使用 `THREE.Points` 渲染卫星，受限于 WebGL 点渲染性能，只能显示 ~500-1000 颗卫星。
+需要迁移到真正的 WebGL Instancing 以支持 5000+ 卫星流畅渲染。
+
+## 技术选型
+
+| 方案 | 性能 | 改动量 | 维护性 | 推荐 |
+|------|------|--------|--------|------|
+| THREE.Points (现状) | ★★☆ | - | - | 基准 |
+| THREE.InstancedMesh | ★★★ | 中 | 高 | 不适合点 |
+| InstancedBufferGeometry + 自定义Shader | ★★★★ | 中高 | 中 | ✅ 推荐 |
+| 迁移到 TWGL.js / Raw WebGL | ★★★★★ | 高 | 低 | 未来UE |
+
+**推荐方案**: InstancedBufferGeometry + 自定义 Shader
+- 保持 Three.js 架构
+- 复用 satellite.js 数据层
+- 性能接近原生 WebGL
+
+---
+
+## Phase 1: 调研与原型
+
+### 1.1 分析现有架构
+
+**现状 (satellites.js)**:
+```javascript
+// 创建点云
+const pointsGeometry = new THREE.BufferGeometry();
+pointsGeometry.setAttribute('position', new THREE.BufferAttribute(positions, 3));
+pointsGeometry.setAttribute('color', new THREE.BufferAttribute(colors, 3));
+
+const pointsMaterial = new THREE.PointsMaterial({
+  size: 2,
+  vertexColors: true,
+  transparent: true,
+  opacity: 0.8,
+  sizeAttenuation: true
+});
+
+satellitePoints = new THREE.Points(pointsGeometry, pointsMaterial);
+```
+
+**问题**: 每个卫星作为一个顶点，GPU 需要处理 ~500 个 draw calls (取决于视锥体裁剪)
+
+### 1.2 Instanced Rendering 原理
+
+```javascript
+// 目标：单次 draw call 渲染所有卫星
+// 每个卫星属性:
+// - position (vec3): 位置
+// - color (vec3): 颜色
+// - size (float): 大小 (可选)
+// - selected (float): 是否选中 (0/1)
+
+// 使用 InstancedBufferGeometry
+const geometry = new THREE.InstancedBufferGeometry();
+geometry.index = originalGeometry.index;
+geometry.attributes.position = originalGeometry.attributes.position;
+geometry.attributes.uv = originalGeometry.attributes.uv;
+
+// 实例数据
+const instancePositions = new Float32Array(satelliteCount * 3);
+const instanceColors = new Float32Array(satelliteCount * 3);
+
+geometry.setAttribute('instancePosition', 
+  new THREE.InstancedBufferAttribute(instancePositions, 3));
+geometry.setAttribute('instanceColor', 
+  new THREE.InstancedBufferAttribute(instanceColors, 3));
+
+// 自定义 Shader
+const material = new THREE.ShaderMaterial({
+  vertexShader: `
+    attribute vec3 instancePosition;
+    attribute vec3 instanceColor;
+    varying vec3 vColor;
+    
+    void main() {
+      vColor = instanceColor;
+      vec3 transformed = position + instancePosition;
+      gl_Position = projectionMatrix * modelViewMatrix * vec4(transformed, 1.0);
+    }
+  `,
+  fragmentShader: `
+    varying vec3 vColor;
+    void main() {
+      gl_FragColor = vec4(vColor, 0.8);
+    }
+  `
+});
+```
+
+---
+
+## Phase 2: 实现
+
+### 2.1 创建 instanced-satellites.js
+
+```javascript
+// instanced-satellites.js - Instanced rendering for satellites
+
+import * as THREE from 'three';
+import { SATELLITE_CONFIG } from './constants.js';
+
+let instancedMesh = null;
+let satelliteData = [];
+let instancePositions = null;
+let instanceColors = null;
+let satelliteCount = 0;
+
+const SATELLITE_VERTEX_SHADER = `
+  attribute vec3 instancePosition;
+  attribute vec3 instanceColor;
+  attribute float instanceSize;
+  
+  varying vec3 vColor;
+  
+  void main() {
+    vColor = instanceColor;
+    vec3 transformed = position * instanceSize + instancePosition;
+    gl_Position = projectionMatrix * modelViewMatrix * vec4(transformed, 1.0);
+  }
+`;
+
+const SATELLITE_FRAGMENT_SHADER = `
+  varying vec3 vColor;
+  
+  void main() {
+    gl_FragColor = vec4(vColor, 0.9);
+  }
+`;
+
+export function createInstancedSatellites(scene, earthObj) {
+  // 基础球体几何 (每个卫星是一个小圆点)
+  const baseGeometry = new THREE.CircleGeometry(1, 8);
+  
+  // 创建 InstancedBufferGeometry
+  const geometry = new THREE.InstancedBufferGeometry();
+  geometry.index = baseGeometry.index;
+  geometry.attributes.position = baseGeometry.attributes.position;
+  geometry.attributes.uv = baseGeometry.attributes.uv;
+  
+  // 初始化实例数据数组 (稍后填充)
+  instancePositions = new Float32Array(MAX_SATELLITES * 3);
+  instanceColors = new Float32Array(MAX_SATELLITES * 3);
+  const instanceSizes = new Float32Array(MAX_SATELLITES);
+  
+  geometry.setAttribute('instancePosition', 
+    new THREE.InstancedBufferAttribute(instancePositions, 3));
+  geometry.setAttribute('instanceColor', 
+    new THREE.InstancedBufferAttribute(instanceColors, 3));
+  geometry.setAttribute('instanceSize', 
+    new THREE.InstancedBufferAttribute(instanceSizes, 1));
+  
+  const material = new THREE.ShaderMaterial({
+    vertexShader: SATELLITE_VERTEX_SHADER,
+    fragmentShader: SATELLITE_FRAGMENT_SHADER,
+    transparent: true,
+    side: THREE.DoubleSide
+  });
+  
+  instancedMesh = new THREE.Mesh(geometry, material);
+  instancedMesh.frustumCulled = false; // 我们自己处理裁剪
+  scene.add(instancedMesh);
+  
+  return instancedMesh;
+}
+
+export function updateInstancedSatellites(satellitePositions) {
+  // satellitePositions: Array of { position: Vector3, color: Color }
+  const count = Math.min(satellitePositions.length, MAX_SATELLITES);
+  
+  for (let i = 0; i < count; i++) {
+    const sat = satellitePositions[i];
+    instancePositions[i * 3] = sat.position.x;
+    instancePositions[i * 3 + 1] = sat.position.y;
+    instancePositions[i * 3 + 2] = sat.position.z;
+    
+    instanceColors[i * 3] = sat.color.r;
+    instanceColors[i * 3 + 1] = sat.color.g;
+    instanceColors[i * 3 + 2] = sat.color.b;
+  }
+  
+  instancedMesh.geometry.attributes.instancePosition.needsUpdate = true;
+  instancedMesh.geometry.attributes.instanceColor.needsUpdate = true;
+  instancedMesh.geometry.setDrawRange(0, count);
+}
+```
+
+### 2.2 修改现有 satellites.js
+
+保持数据层不变，添加新渲染模式：
+
+```javascript
+// 添加配置
+export const SATELLITE_CONFIG = {
+  USE_INSTANCING: true,  // 切换渲染模式
+  MAX_SATELLITES: 5000,
+  SATELLITE_SIZE: 0.5,
+  // ...
+};
+```
+
+### 2.3 性能优化点
+
+1. **GPU 实例化**: 单次 draw call 渲染所有卫星
+2. **批量更新**: 所有位置/颜色一次更新
+3. **视锥体裁剪**: 自定义裁剪逻辑，避免 CPU 端逐卫星检测
+4. **LOD (可选)**: 远处卫星简化显示
+
+---
+
+## Phase 3: 与现有系统集成
+
+### 3.1 悬停/选中处理
+
+当前通过 `selectSatellite()` 设置选中状态，Instanced 模式下需要：
+
+```javascript
+// 在 shader 中通过 instanceId 判断是否选中
+// 或者使用单独的 InstancedBufferAttribute 存储选中状态
+const instanceSelected = new Float32Array(MAX_SATELLITES);
+geometry.setAttribute('instanceSelected', 
+  new THREE.InstancedBufferAttribute(instanceSelected, 1));
+```
+
+### 3.2 轨迹线
+
+轨迹线仍然使用 `THREE.Line` 或 `THREE.LineSegments`，但可以类似地 Instanced 化：
+
+```javascript
+// Instanced LineSegments for trails
+const trailGeometry = new THREE.InstancedBufferGeometry();
+trailGeometry.setAttribute('position', trailPositions);
+trailGeometry.setAttribute('instanceStart', ...);
+trailGeometry.setAttribute('instanceEnd', ...);
+```
+
+---
+
+## Phase 4: 验证与调优
+
+### 4.1 性能测试
+
+| 卫星数量 | Points 模式 | Instanced 模式 |
+|----------|-------------|----------------|
+| 500 | ✅ 60fps | ✅ 60fps |
+| 2000 | ⚠️ 30fps | ✅ 60fps |
+| 5000 | ❌ 10fps | ✅ 45fps |
+| 10000 | ❌ 卡顿 | ⚠️ 30fps |
+
+### 4.2 可能遇到的问题
+
+1. **Shader 编译错误**: 需要调试 GLSL
+2. **实例数量限制**: GPU 最大实例数 (通常 65535)
+3. **大小不一**: 需要 per-instance size 属性
+4. **透明度排序**: Instanced 渲染透明度处理复杂
+
+---
+
+## 文件变更清单
+
+| 文件 | 变更 |
+|------|------|
+| `constants.js` | 新增 `SATELLITE_CONFIG` |
+| `satellites.js` | 添加 Instanced 模式支持 |
+| `instanced-satellites.js` | 新文件 - Instanced 渲染核心 |
+| `main.js` | 集成新渲染模块 |
+
+---
+
+## 时间估算
+
+| Phase | 工作量 | 难度 |
+|-------|--------|------|
+| Phase 1 | 1-2 天 | 低 |
+| Phase 2 | 2-3 天 | 中 |
+| Phase 3 | 1-2 天 | 中 |
+| Phase 4 | 1 天 | 低 |
+| **总计** | **5-8 天** | - |
+
+---
+
+## 替代方案考虑
+
+如果 Phase 2 实施困难，可以考虑：
+
+1. **使用 Three.js InstancedMesh**: 适合渲染小型 3D 模型替代点
+2. **使用 pointcloud2 格式**: 类似 LiDAR 点云渲染
+3. **Web Workers**: 将轨道计算移到 Worker 线程
+4. **迁移到 Cesium**: Cesium 原生支持 Instancing，且是 UE 迁移的中间步骤

VERSION

@@ -0,0 +1 @@
+0.19.0

backend/Dockerfile

@@ -16,4 +16,4 @@ COPY . .
 
 EXPOSE 8000
 
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]

backend/app/api/v1/alerts.py

@@ -10,6 +10,7 @@ from app.models.user import User
 from app.core.security import get_current_user
 from app.models.alert import Alert, AlertSeverity, AlertStatus
 
+
 router = APIRouter()
 
 

backend/app/api/v1/collected_data.py

@@ -7,6 +7,8 @@ import json
 import csv
 import io
 
+from app.core.collected_data_fields import get_metadata_field
+from app.core.countries import COUNTRY_OPTIONS, get_country_search_variants, normalize_country
 from app.db.session import get_db
 from app.models.user import User
 from app.core.security import get_current_user
@@ -15,8 +17,119 @@ from app.models.collected_data import CollectedData
 router = APIRouter()
 
 
+COUNTRY_SQL = "metadata->>'country'"
+SEARCHABLE_SQL = [
+    "name",
+    "title",
+    "description",
+    "source",
+    "data_type",
+    "source_id",
+    "metadata::text",
+]
+
+
+def parse_multi_values(value: Optional[str]) -> list[str]:
+    if not value:
+        return []
+    return [item.strip() for item in value.split(",") if item.strip()]
+
+
+def build_in_condition(field_sql: str, values: list[str], param_prefix: str, params: dict) -> str:
+    placeholders = []
+    for index, value in enumerate(values):
+        key = f"{param_prefix}_{index}"
+        params[key] = value
+        placeholders.append(f":{key}")
+    return f"{field_sql} IN ({', '.join(placeholders)})"
+
+
+def build_search_condition(search: Optional[str], params: dict) -> Optional[str]:
+    if not search:
+        return None
+
+    normalized = search.strip()
+    if not normalized:
+        return None
+
+    search_terms = [normalized]
+    for variant in get_country_search_variants(normalized):
+        if variant.casefold() not in {term.casefold() for term in search_terms}:
+            search_terms.append(variant)
+
+    conditions = []
+    for index, term in enumerate(search_terms):
+        params[f"search_{index}"] = f"%{term}%"
+        conditions.extend(f"{field} ILIKE :search_{index}" for field in SEARCHABLE_SQL)
+
+    params["search_exact"] = normalized
+    params["search_prefix"] = f"{normalized}%"
+
+    canonical_variants = get_country_search_variants(normalized)
+    canonical = canonical_variants[0] if canonical_variants else None
+    params["country_search_exact"] = canonical or normalized
+    params["country_search_prefix"] = f"{(canonical or normalized)}%"
+
+    return "(" + " OR ".join(conditions) + ")"
+
+
+def build_search_rank_sql(search: Optional[str]) -> str:
+    if not search or not search.strip():
+        return "0"
+
+    return """
+        CASE
+            WHEN name ILIKE :search_exact THEN 700
+            WHEN name ILIKE :search_prefix THEN 600
+            WHEN title ILIKE :search_exact THEN 500
+            WHEN title ILIKE :search_prefix THEN 400
+            WHEN metadata->>'country' ILIKE :country_search_exact THEN 380
+            WHEN metadata->>'country' ILIKE :country_search_prefix THEN 340
+            WHEN source_id ILIKE :search_exact THEN 350
+            WHEN source ILIKE :search_exact THEN 300
+            WHEN data_type ILIKE :search_exact THEN 250
+            WHEN description ILIKE :search_0 THEN 150
+            WHEN metadata::text ILIKE :search_0 THEN 100
+            WHEN title ILIKE :search_0 THEN 80
+            WHEN name ILIKE :search_0 THEN 60
+            WHEN source ILIKE :search_0 THEN 40
+            WHEN data_type ILIKE :search_0 THEN 30
+            WHEN source_id ILIKE :search_0 THEN 20
+            ELSE 0
+        END
+    """
+
+
+def serialize_collected_row(row) -> dict:
+    metadata = row[7]
+    return {
+        "id": row[0],
+        "source": row[1],
+        "source_id": row[2],
+        "data_type": row[3],
+        "name": row[4],
+        "title": row[5],
+        "description": row[6],
+        "country": get_metadata_field(metadata, "country"),
+        "city": get_metadata_field(metadata, "city"),
+        "latitude": get_metadata_field(metadata, "latitude"),
+        "longitude": get_metadata_field(metadata, "longitude"),
+        "value": get_metadata_field(metadata, "value"),
+        "unit": get_metadata_field(metadata, "unit"),
+        "metadata": metadata,
+        "cores": get_metadata_field(metadata, "cores"),
+        "rmax": get_metadata_field(metadata, "rmax"),
+        "rpeak": get_metadata_field(metadata, "rpeak"),
+        "power": get_metadata_field(metadata, "power"),
+        "collected_at": row[8].isoformat() if row[8] else None,
+        "reference_date": row[9].isoformat() if row[9] else None,
+        "is_valid": row[10],
+    }
+
+
 @router.get("")
 async def list_collected_data(
+    mode: str = Query("current", description="查询模式: current/history"),
     source: Optional[str] = Query(None, description="数据源过滤"),
     data_type: Optional[str] = Query(None, description="数据类型过滤"),
     country: Optional[str] = Query(None, description="国家过滤"),
@@ -27,25 +140,30 @@ async def list_collected_data(
     db: AsyncSession = Depends(get_db),
 ):
     """查询采集的数据列表"""
+    normalized_country = normalize_country(country) if country else None
+    source_values = parse_multi_values(source)
+    data_type_values = parse_multi_values(data_type)
 
     # Build WHERE clause
     conditions = []
     params = {}
 
-    if source:
-        conditions.append("source = :source")
-        params["source"] = source
-    if data_type:
-        conditions.append("data_type = :data_type")
-        params["data_type"] = data_type
-    if country:
-        conditions.append("country = :country")
-        params["country"] = country
-    if search:
-        conditions.append("(name ILIKE :search OR title ILIKE :search)")
-        params["search"] = f"%{search}%"
+    if mode != "history":
+        conditions.append("COALESCE(is_current, TRUE) = TRUE")
+
+    if source_values:
+        conditions.append(build_in_condition("source", source_values, "source", params))
+    if data_type_values:
+        conditions.append(build_in_condition("data_type", data_type_values, "data_type", params))
+    if normalized_country:
+        conditions.append(f"{COUNTRY_SQL} = :country")
+        params["country"] = normalized_country
+    search_condition = build_search_condition(search, params)
+    if search_condition:
+        conditions.append(search_condition)
 
     where_sql = " AND ".join(conditions) if conditions else "1=1"
+    search_rank_sql = build_search_rank_sql(search)
 
     # Calculate offset
     offset = (page - 1) * page_size
@@ -58,11 +176,11 @@ async def list_collected_data(
     # Query data
     query = text(f"""
         SELECT id, source, source_id, data_type, name, title, description,
-               country, city, latitude, longitude, value, unit,
-               metadata, collected_at, reference_date, is_valid
+               metadata, collected_at, reference_date, is_valid,
+               {search_rank_sql} AS search_rank
         FROM collected_data
         WHERE {where_sql}
-        ORDER BY collected_at DESC
+        ORDER BY search_rank DESC, collected_at DESC
         LIMIT :limit OFFSET :offset
     """)
     params["limit"] = page_size
@@ -73,27 +191,7 @@ async def list_collected_data(
 
     data = []
     for row in rows:
-        data.append(
-            {
-                "id": row[0],
-                "source": row[1],
-                "source_id": row[2],
-                "data_type": row[3],
-                "name": row[4],
-                "title": row[5],
-                "description": row[6],
-                "country": row[7],
-                "city": row[8],
-                "latitude": row[9],
-                "longitude": row[10],
-                "value": row[11],
-                "unit": row[12],
-                "metadata": row[13],
-                "collected_at": row[14].isoformat() if row[14] else None,
-                "reference_date": row[15].isoformat() if row[15] else None,
-                "is_valid": row[16],
-            }
-        )
+        data.append(serialize_collected_row(row[:11]))
 
     return {
         "total": total,
@@ -105,16 +203,19 @@ async def list_collected_data(
 
 @router.get("/summary")
 async def get_data_summary(
+    mode: str = Query("current", description="查询模式: current/history"),
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
     """获取数据汇总统计"""
+    where_sql = "WHERE COALESCE(is_current, TRUE) = TRUE" if mode != "history" else ""
 
     # By source and data_type
     result = await db.execute(
         text("""
         SELECT source, data_type, COUNT(*) as count
         FROM collected_data
+        """ + where_sql + """
         GROUP BY source, data_type
         ORDER BY source, data_type
     """)
@@ -138,6 +239,7 @@ async def get_data_summary(
         text("""
         SELECT source, COUNT(*) as count
         FROM collected_data
+        """ + where_sql + """
         GROUP BY source
         ORDER BY count DESC
     """)
@@ -153,6 +255,7 @@ async def get_data_summary(
 
 @router.get("/sources")
 async def get_data_sources(
+    mode: str = Query("current", description="查询模式: current/history"),
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
@@ -160,7 +263,9 @@ async def get_data_sources(
 
     result = await db.execute(
         text("""
-        SELECT DISTINCT source FROM collected_data ORDER BY source
+        SELECT DISTINCT source FROM collected_data
+        """ + ("WHERE COALESCE(is_current, TRUE) = TRUE " if mode != "history" else "") + """
+        ORDER BY source
     """)
     )
     rows = result.fetchall()
@@ -172,6 +277,7 @@ async def get_data_sources(
 
 @router.get("/types")
 async def get_data_types(
+    mode: str = Query("current", description="查询模式: current/history"),
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
@@ -179,7 +285,9 @@ async def get_data_types(
 
     result = await db.execute(
         text("""
-        SELECT DISTINCT data_type FROM collected_data ORDER BY data_type
+        SELECT DISTINCT data_type FROM collected_data
+        """ + ("WHERE COALESCE(is_current, TRUE) = TRUE " if mode != "history" else "") + """
+        ORDER BY data_type
     """)
     )
     rows = result.fetchall()
@@ -196,17 +304,8 @@ async def get_countries(
 ):
     """获取所有国家列表"""
 
-    result = await db.execute(
-        text("""
-        SELECT DISTINCT country FROM collected_data
-        WHERE country IS NOT NULL AND country != ''
-        ORDER BY country
-    """)
-    )
-    rows = result.fetchall()
-
     return {
-        "countries": [row[0] for row in rows],
+        "countries": COUNTRY_OPTIONS,
     }
 
 
@@ -221,7 +320,6 @@ async def get_collected_data(
     result = await db.execute(
         text("""
             SELECT id, source, source_id, data_type, name, title, description,
-                   country, city, latitude, longitude, value, unit,
                    metadata, collected_at, reference_date, is_valid
             FROM collected_data
             WHERE id = :id
@@ -236,25 +334,7 @@ async def get_collected_data(
             detail="数据不存在",
         )
 
-    return {
-        "id": row[0],
-        "source": row[1],
-        "source_id": row[2],
-        "data_type": row[3],
-        "name": row[4],
-        "title": row[5],
-        "description": row[6],
-        "country": row[7],
-        "city": row[8],
-        "latitude": row[9],
-        "longitude": row[10],
-        "value": row[11],
-        "unit": row[12],
-        "metadata": row[13],
-        "collected_at": row[14].isoformat() if row[14] else None,
-        "reference_date": row[15].isoformat() if row[15] else None,
-        "is_valid": row[16],
-    }
+    return serialize_collected_row(row)
 
 
 def build_where_clause(
@@ -263,19 +343,21 @@ def build_where_clause(
     """Build WHERE clause and params for queries"""
     conditions = []
     params = {}
+    source_values = parse_multi_values(source)
+    data_type_values = parse_multi_values(data_type)
 
-    if source:
-        conditions.append("source = :source")
-        params["source"] = source
-    if data_type:
-        conditions.append("data_type = :data_type")
-        params["data_type"] = data_type
-    if country:
-        conditions.append("country = :country")
-        params["country"] = country
-    if search:
-        conditions.append("(name ILIKE :search OR title ILIKE :search)")
-        params["search"] = f"%{search}%"
+    if source_values:
+        conditions.append(build_in_condition("source", source_values, "source", params))
+    if data_type_values:
+        conditions.append(build_in_condition("data_type", data_type_values, "data_type", params))
+    normalized_country = normalize_country(country) if country else None
+
+    if normalized_country:
+        conditions.append(f"{COUNTRY_SQL} = :country")
+        params["country"] = normalized_country
+    search_condition = build_search_condition(search, params)
+    if search_condition:
+        conditions.append(search_condition)
 
     where_sql = " AND ".join(conditions) if conditions else "1=1"
     return where_sql, params
@@ -283,6 +365,7 @@ def build_where_clause(
 
 @router.get("/export/json")
 async def export_json(
+    mode: str = Query("current", description="查询模式: current/history"),
     source: Optional[str] = Query(None, description="数据源过滤"),
     data_type: Optional[str] = Query(None, description="数据类型过滤"),
     country: Optional[str] = Query(None, description="国家过滤"),
@@ -294,11 +377,12 @@ async def export_json(
     """导出数据为 JSON 格式"""
 
     where_sql, params = build_where_clause(source, data_type, country, search)
+    if mode != "history":
+        where_sql = f"({where_sql}) AND COALESCE(is_current, TRUE) = TRUE"
     params["limit"] = limit
 
     query = text(f"""
         SELECT id, source, source_id, data_type, name, title, description,
-               country, city, latitude, longitude, value, unit,
                metadata, collected_at, reference_date, is_valid
         FROM collected_data
         WHERE {where_sql}
@@ -311,27 +395,7 @@ async def export_json(
 
     data = []
     for row in rows:
-        data.append(
-            {
-                "id": row[0],
-                "source": row[1],
-                "source_id": row[2],
-                "data_type": row[3],
-                "name": row[4],
-                "title": row[5],
-                "description": row[6],
-                "country": row[7],
-                "city": row[8],
-                "latitude": row[9],
-                "longitude": row[10],
-                "value": row[11],
-                "unit": row[12],
-                "metadata": row[13],
-                "collected_at": row[14].isoformat() if row[14] else None,
-                "reference_date": row[15].isoformat() if row[15] else None,
-                "is_valid": row[16],
-            }
-        )
+        data.append(serialize_collected_row(row))
 
     json_str = json.dumps({"data": data, "total": len(data)}, ensure_ascii=False, indent=2)
 
@@ -346,6 +410,7 @@ async def export_json(
 
 @router.get("/export/csv")
 async def export_csv(
+    mode: str = Query("current", description="查询模式: current/history"),
     source: Optional[str] = Query(None, description="数据源过滤"),
     data_type: Optional[str] = Query(None, description="数据类型过滤"),
     country: Optional[str] = Query(None, description="国家过滤"),
@@ -357,11 +422,12 @@ async def export_csv(
     """导出数据为 CSV 格式"""
 
     where_sql, params = build_where_clause(source, data_type, country, search)
+    if mode != "history":
+        where_sql = f"({where_sql}) AND COALESCE(is_current, TRUE) = TRUE"
     params["limit"] = limit
 
     query = text(f"""
         SELECT id, source, source_id, data_type, name, title, description,
-               country, city, latitude, longitude, value, unit,
                metadata, collected_at, reference_date, is_valid
         FROM collected_data
         WHERE {where_sql}
@@ -409,16 +475,16 @@ async def export_csv(
                 row[4],
                 row[5],
                 row[6],
-                row[7],
-                row[8],
-                row[9],
+                get_metadata_field(row[7], "country"),
+                get_metadata_field(row[7], "city"),
+                get_metadata_field(row[7], "latitude"),
+                get_metadata_field(row[7], "longitude"),
+                get_metadata_field(row[7], "value"),
+                get_metadata_field(row[7], "unit"),
+                json.dumps(row[7]) if row[7] else "",
+                row[8].isoformat() if row[8] else "",
+                row[9].isoformat() if row[9] else "",
                 row[10],
-                row[11],
-                row[12],
-                json.dumps(row[13]) if row[13] else "",
-                row[14].isoformat() if row[14] else "",
-                row[15].isoformat() if row[15] else "",
-                row[16],
             ]
         )
 

backend/app/api/v1/dashboard.py

@@ -14,6 +14,7 @@ from app.models.task import CollectionTask
 from app.core.security import get_current_user
 from app.core.cache import cache
 
+
 # Built-in collectors info (mirrored from datasources.py)
 COLLECTOR_INFO = {
     "top500": {

backend/app/api/v1/datasource_config.py

@@ -307,3 +307,40 @@ async def test_new_config(
             "error": "Connection failed",
             "message": str(e),
         }
+
+
+@router.get("/configs/all")
+async def list_all_datasources(
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """List all data sources: YAML defaults + DB overrides"""
+    from app.core.data_sources import COLLECTOR_URL_KEYS, get_data_sources_config
+
+    config = get_data_sources_config()
+
+    db_query = await db.execute(select(DataSourceConfig))
+    db_configs = {c.name: c for c in db_query.scalars().all()}
+
+    result = []
+    for name, yaml_key in COLLECTOR_URL_KEYS.items():
+        yaml_url = config.get_yaml_url(name)
+        db_config = db_configs.get(name)
+
+        result.append(
+            {
+                "name": name,
+                "default_url": yaml_url,
+                "endpoint": db_config.endpoint if db_config else yaml_url,
+                "is_overridden": db_config is not None and db_config.endpoint != yaml_url
+                if yaml_url
+                else db_config is not None,
+                "is_active": db_config.is_active if db_config else True,
+                "source_type": db_config.source_type if db_config else "http",
+                "description": db_config.description
+                if db_config
+                else f"Data source from YAML: {yaml_key}",
+            }
+        )
+
+    return {"total": len(result), "data": result}

backend/app/api/v1/datasources.py

@@ -1,127 +1,67 @@
-from typing import List, Optional
-from datetime import datetime
-from fastapi import APIRouter, Depends, HTTPException, status
-from sqlalchemy import select, func
+from typing import Optional
+
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy import func, select
 from sqlalchemy.ext.asyncio import AsyncSession
 
+from app.core.security import get_current_user
+from app.core.data_sources import get_data_sources_config
 from app.db.session import get_db
-from app.models.user import User
+from app.models.collected_data import CollectedData
 from app.models.datasource import DataSource
 from app.models.task import CollectionTask
-from app.models.collected_data import CollectedData
-from app.core.security import get_current_user
-from app.services.collectors.registry import collector_registry
+from app.models.user import User
+from app.services.scheduler import get_latest_task_id_for_datasource, run_collector_now, sync_datasource_job
 
 router = APIRouter()
 
-COLLECTOR_INFO = {
-    "top500": {
-        "id": 1,
-        "name": "TOP500 Supercomputers",
-        "module": "L1",
-        "priority": "P0",
-        "frequency_hours": 4,
-    },
-    "epoch_ai_gpu": {
-        "id": 2,
-        "name": "Epoch AI GPU Clusters",
-        "module": "L1",
-        "priority": "P0",
-        "frequency_hours": 6,
-    },
-    "huggingface_models": {
-        "id": 3,
-        "name": "HuggingFace Models",
-        "module": "L2",
-        "priority": "P1",
-        "frequency_hours": 12,
-    },
-    "huggingface_datasets": {
-        "id": 4,
-        "name": "HuggingFace Datasets",
-        "module": "L2",
-        "priority": "P1",
-        "frequency_hours": 12,
-    },
-    "huggingface_spaces": {
-        "id": 5,
-        "name": "HuggingFace Spaces",
-        "module": "L2",
-        "priority": "P2",
-        "frequency_hours": 24,
-    },
-    "peeringdb_ixp": {
-        "id": 6,
-        "name": "PeeringDB IXP",
-        "module": "L2",
-        "priority": "P1",
-        "frequency_hours": 24,
-    },
-    "peeringdb_network": {
-        "id": 7,
-        "name": "PeeringDB Networks",
-        "module": "L2",
-        "priority": "P2",
-        "frequency_hours": 48,
-    },
-    "peeringdb_facility": {
-        "id": 8,
-        "name": "PeeringDB Facilities",
-        "module": "L2",
-        "priority": "P2",
-        "frequency_hours": 48,
-    },
-    "telegeography_cables": {
-        "id": 9,
-        "name": "Submarine Cables",
-        "module": "L2",
-        "priority": "P1",
-        "frequency_hours": 168,
-    },
-    "telegeography_landing": {
-        "id": 10,
-        "name": "Cable Landing Points",
-        "module": "L2",
-        "priority": "P2",
-        "frequency_hours": 168,
-    },
-    "telegeography_systems": {
-        "id": 11,
-        "name": "Cable Systems",
-        "module": "L2",
-        "priority": "P2",
-        "frequency_hours": 168,
-    },
-    "arcgis_cables": {
-        "id": 15,
-        "name": "ArcGIS Submarine Cables",
-        "module": "L2",
-        "priority": "P1",
-        "frequency_hours": 168,
-    },
-    "fao_landing_points": {
-        "id": 16,
-        "name": "FAO Landing Points",
-        "module": "L2",
-        "priority": "P1",
-        "frequency_hours": 168,
-    },
-}
 
-ID_TO_COLLECTOR = {info["id"]: name for name, info in COLLECTOR_INFO.items()}
-COLLECTOR_TO_ID = {name: info["id"] for name, info in COLLECTOR_INFO.items()}
+def format_frequency_label(minutes: int) -> str:
+    if minutes % 1440 == 0:
+        return f"{minutes // 1440}d"
+    if minutes % 60 == 0:
+        return f"{minutes // 60}h"
+    return f"{minutes}m"
 
 
-def get_collector_name(source_id: str) -> Optional[str]:
+async def get_datasource_record(db: AsyncSession, source_id: str) -> Optional[DataSource]:
+    datasource = None
     try:
-        numeric_id = int(source_id)
-        if numeric_id in ID_TO_COLLECTOR:
-            return ID_TO_COLLECTOR[numeric_id]
+        datasource = await db.get(DataSource, int(source_id))
     except ValueError:
         pass
-    if source_id in COLLECTOR_INFO:
-        return source_id
-    return None
+
+    if datasource is not None:
+        return datasource
+
+    result = await db.execute(
+        select(DataSource).where(
+            (DataSource.source == source_id) | (DataSource.collector_class == source_id)
+        )
+    )
+    return result.scalar_one_or_none()
+
+
+async def get_last_completed_task(db: AsyncSession, datasource_id: int) -> Optional[CollectionTask]:
+    result = await db.execute(
+        select(CollectionTask)
+        .where(CollectionTask.datasource_id == datasource_id)
+        .where(CollectionTask.completed_at.isnot(None))
+        .order_by(CollectionTask.completed_at.desc())
+        .limit(1)
+    )
+    return result.scalar_one_or_none()
+
+
+async def get_running_task(db: AsyncSession, datasource_id: int) -> Optional[CollectionTask]:
+    result = await db.execute(
+        select(CollectionTask)
+        .where(CollectionTask.datasource_id == datasource_id)
+        .where(CollectionTask.status == "running")
+        .order_by(CollectionTask.started_at.desc())
+        .limit(1)
+    )
+    return result.scalar_one_or_none()
 
 
 @router.get("")
@@ -132,48 +72,26 @@ async def list_datasources(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
-    query = select(DataSource)
-
-    filters = []
+    query = select(DataSource).order_by(DataSource.module, DataSource.id)
     if module:
-        filters.append(DataSource.module == module)
+        query = query.where(DataSource.module == module)
     if is_active is not None:
-        filters.append(DataSource.is_active == is_active)
+        query = query.where(DataSource.is_active == is_active)
     if priority:
-        filters.append(DataSource.priority == priority)
-
-    if filters:
-        query = query.where(*filters)
+        query = query.where(DataSource.priority == priority)
 
     result = await db.execute(query)
     datasources = result.scalars().all()
 
     collector_list = []
-    for name, info in COLLECTOR_INFO.items():
-        is_active_status = collector_registry.is_active(name)
-
-        running_task_query = (
-            select(CollectionTask)
-            .where(CollectionTask.datasource_id == info["id"])
-            .where(CollectionTask.status == "running")
-            .order_by(CollectionTask.started_at.desc())
-            .limit(1)
+    config = get_data_sources_config()
+    for datasource in datasources:
+        running_task = await get_running_task(db, datasource.id)
+        last_task = await get_last_completed_task(db, datasource.id)
+        endpoint = await config.get_url(datasource.source, db)
+        data_count_result = await db.execute(
+            select(func.count(CollectedData.id)).where(CollectedData.source == datasource.source)
         )
-        running_result = await db.execute(running_task_query)
-        running_task = running_result.scalar_one_or_none()
-
-        last_run_query = (
-            select(CollectionTask)
-            .where(CollectionTask.datasource_id == info["id"])
-            .where(CollectionTask.completed_at.isnot(None))
-            .order_by(CollectionTask.completed_at.desc())
-            .limit(1)
-        )
-        last_run_result = await db.execute(last_run_query)
-        last_task = last_run_result.scalar_one_or_none()
-
-        data_count_query = select(func.count(CollectedData.id)).where(CollectedData.source == name)
-        data_count_result = await db.execute(data_count_query)
         data_count = data_count_result.scalar() or 0
 
         last_run = None
@@ -182,31 +100,26 @@ async def list_datasources(
 
         collector_list.append(
             {
-                "id": info["id"],
-                "name": info["name"],
-                "module": info["module"],
-                "priority": info["priority"],
-                "frequency": f"{info['frequency_hours']}h",
-                "is_active": is_active_status,
-                "collector_class": name,
+                "id": datasource.id,
+                "name": datasource.name,
+                "module": datasource.module,
+                "priority": datasource.priority,
+                "frequency": format_frequency_label(datasource.frequency_minutes),
+                "frequency_minutes": datasource.frequency_minutes,
+                "is_active": datasource.is_active,
+                "collector_class": datasource.collector_class,
+                "endpoint": endpoint,
                 "last_run": last_run,
                 "is_running": running_task is not None,
                 "task_id": running_task.id if running_task else None,
                 "progress": running_task.progress if running_task else None,
+                "phase": running_task.phase if running_task else None,
                 "records_processed": running_task.records_processed if running_task else None,
                 "total_records": running_task.total_records if running_task else None,
             }
         )
 
-    if module:
-        collector_list = [c for c in collector_list if c["module"] == module]
-    if priority:
-        collector_list = [c for c in collector_list if c["priority"] == priority]
-
-    return {
-        "total": len(collector_list),
-        "data": collector_list,
-    }
+    return {"total": len(collector_list), "data": collector_list}
 
 
 @router.get("/{source_id}")
@@ -215,19 +128,24 @@ async def get_datasource(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
-    collector_name = get_collector_name(source_id)
-    if not collector_name:
+    datasource = await get_datasource_record(db, source_id)
+    if not datasource:
         raise HTTPException(status_code=404, detail="Data source not found")
 
-    info = COLLECTOR_INFO[collector_name]
+    config = get_data_sources_config()
+    endpoint = await config.get_url(datasource.source, db)
+
     return {
-        "id": info["id"],
-        "name": info["name"],
-        "module": info["module"],
-        "priority": info["priority"],
-        "frequency": f"{info['frequency_hours']}h",
-        "collector_class": collector_name,
-        "is_active": collector_registry.is_active(collector_name),
+        "id": datasource.id,
+        "name": datasource.name,
+        "module": datasource.module,
+        "priority": datasource.priority,
+        "frequency": format_frequency_label(datasource.frequency_minutes),
+        "frequency_minutes": datasource.frequency_minutes,
+        "collector_class": datasource.collector_class,
+        "source": datasource.source,
+        "endpoint": endpoint,
+        "is_active": datasource.is_active,
     }
 
 
@@ -235,24 +153,32 @@ async def get_datasource(
 async def enable_datasource(
     source_id: str,
     current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
 ):
-    collector_name = get_collector_name(source_id)
-    if not collector_name:
+    datasource = await get_datasource_record(db, source_id)
+    if not datasource:
         raise HTTPException(status_code=404, detail="Data source not found")
-    collector_registry.set_active(collector_name, True)
-    return {"status": "enabled", "source_id": source_id}
+
+    datasource.is_active = True
+    await db.commit()
+    await sync_datasource_job(datasource.id)
+    return {"status": "enabled", "source_id": datasource.id}
 
 
 @router.post("/{source_id}/disable")
 async def disable_datasource(
     source_id: str,
     current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
 ):
-    collector_name = get_collector_name(source_id)
-    if not collector_name:
+    datasource = await get_datasource_record(db, source_id)
+    if not datasource:
         raise HTTPException(status_code=404, detail="Data source not found")
-    collector_registry.set_active(collector_name, False)
-    return {"status": "disabled", "source_id": source_id}
+
+    datasource.is_active = False
+    await db.commit()
+    await sync_datasource_job(datasource.id)
+    return {"status": "disabled", "source_id": datasource.id}
 
 
 @router.get("/{source_id}/stats")
@@ -261,26 +187,19 @@ async def get_datasource_stats(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
-    collector_name = get_collector_name(source_id)
-    if not collector_name:
+    datasource = await get_datasource_record(db, source_id)
+    if not datasource:
         raise HTTPException(status_code=404, detail="Data source not found")
 
-    info = COLLECTOR_INFO[collector_name]
-    source_name = info["name"]
-
-    query = select(func.count(CollectedData.id)).where(CollectedData.source == collector_name)
-    result = await db.execute(query)
+    result = await db.execute(
+        select(func.count(CollectedData.id)).where(CollectedData.source == datasource.source)
+    )
     total = result.scalar() or 0
 
-    if total == 0:
-        query = select(func.count(CollectedData.id)).where(CollectedData.source == source_name)
-        result = await db.execute(query)
-        total = result.scalar() or 0
-
     return {
-        "source_id": source_id,
-        "collector_name": collector_name,
-        "name": info["name"],
+        "source_id": datasource.id,
+        "collector_name": datasource.collector_class,
+        "name": datasource.name,
         "total_records": total,
     }
 
@@ -289,30 +208,32 @@ async def get_datasource_stats(
 async def trigger_datasource(
     source_id: str,
     current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
 ):
-    collector_name = get_collector_name(source_id)
-    if not collector_name:
+    datasource = await get_datasource_record(db, source_id)
+    if not datasource:
         raise HTTPException(status_code=404, detail="Data source not found")
 
-    from app.services.scheduler import run_collector_now
-
-    if not collector_registry.is_active(collector_name):
+    if not datasource.is_active:
         raise HTTPException(status_code=400, detail="Data source is disabled")
 
-    success = run_collector_now(collector_name)
+    success = run_collector_now(datasource.source)
+    if not success:
+        raise HTTPException(status_code=500, detail=f"Failed to trigger collector '{datasource.source}'")
 
-    if success:
-        return {
-            "status": "triggered",
-            "source_id": source_id,
-            "collector_name": collector_name,
-            "message": f"Collector '{collector_name}' has been triggered",
-        }
-    else:
-        raise HTTPException(
-            status_code=500,
-            detail=f"Failed to trigger collector '{collector_name}'",
-        )
+    task_id = None
+    for _ in range(10):
+        task_id = await get_latest_task_id_for_datasource(datasource.id)
+        if task_id is not None:
+            break
+
+    return {
+        "status": "triggered",
+        "source_id": datasource.id,
+        "task_id": task_id,
+        "collector_name": datasource.source,
+        "message": f"Collector '{datasource.source}' has been triggered",
+    }
 
 
 @router.delete("/{source_id}/data")
@@ -321,39 +242,25 @@ async def clear_datasource_data(
     current_user: User = Depends(get_current_user),
     db: AsyncSession = Depends(get_db),
 ):
-    collector_name = get_collector_name(source_id)
-    if not collector_name:
+    datasource = await get_datasource_record(db, source_id)
+    if not datasource:
         raise HTTPException(status_code=404, detail="Data source not found")
 
-    info = COLLECTOR_INFO[collector_name]
-    source_name = info["name"]
-
-    query = select(func.count(CollectedData.id)).where(CollectedData.source == collector_name)
-    result = await db.execute(query)
+    result = await db.execute(
+        select(func.count(CollectedData.id)).where(CollectedData.source == datasource.source)
+    )
     count = result.scalar() or 0
 
     if count == 0:
-        query = select(func.count(CollectedData.id)).where(CollectedData.source == source_name)
-        result = await db.execute(query)
-        count = result.scalar() or 0
-        delete_source = source_name
-    else:
-        delete_source = collector_name
+        return {"status": "success", "message": "No data to clear", "deleted_count": 0}
 
-    if count == 0:
-        return {
-            "status": "success",
-            "message": "No data to clear",
-            "deleted_count": 0,
-        }
-
-    delete_query = CollectedData.__table__.delete().where(CollectedData.source == delete_source)
+    delete_query = CollectedData.__table__.delete().where(CollectedData.source == datasource.source)
     await db.execute(delete_query)
     await db.commit()
 
     return {
         "status": "success",
-        "message": f"Cleared {count} records for data source '{info['name']}'",
+        "message": f"Cleared {count} records for data source '{datasource.name}'",
         "deleted_count": count,
     }
 
@@ -361,32 +268,29 @@ async def clear_datasource_data(
 @router.get("/{source_id}/task-status")
 async def get_task_status(
     source_id: str,
+    task_id: Optional[int] = None,
     db: AsyncSession = Depends(get_db),
 ):
-    collector_name = get_collector_name(source_id)
-    if not collector_name:
+    datasource = await get_datasource_record(db, source_id)
+    if not datasource:
         raise HTTPException(status_code=404, detail="Data source not found")
 
-    info = COLLECTOR_INFO[collector_name]
+    if task_id is not None:
+        task = await db.get(CollectionTask, task_id)
+        if not task or task.datasource_id != datasource.id:
+            raise HTTPException(status_code=404, detail="Task not found")
+    else:
+        task = await get_running_task(db, datasource.id)
 
-    running_task_query = (
-        select(CollectionTask)
-        .where(CollectionTask.datasource_id == info["id"])
-        .where(CollectionTask.status == "running")
-        .order_by(CollectionTask.started_at.desc())
-        .limit(1)
-    )
-    running_result = await db.execute(running_task_query)
-    running_task = running_result.scalar_one_or_none()
-
-    if not running_task:
-        return {"is_running": False, "task_id": None, "progress": None}
+    if not task:
+        return {"is_running": False, "task_id": None, "progress": None, "phase": None, "status": "idle"}
 
     return {
-        "is_running": True,
-        "task_id": running_task.id,
-        "progress": running_task.progress,
-        "records_processed": running_task.records_processed,
-        "total_records": running_task.total_records,
-        "status": running_task.status,
+        "is_running": task.status == "running",
+        "task_id": task.id,
+        "progress": task.progress,
+        "phase": task.phase,
+        "records_processed": task.records_processed,
+        "total_records": task.total_records,
+        "status": task.status,
     }

backend/app/api/v1/settings.py

@@ -1,13 +1,21 @@
+from datetime import datetime
 from typing import Optional
-from fastapi import APIRouter, Depends, HTTPException
-from pydantic import BaseModel, EmailStr
 
-from app.models.user import User
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel, EmailStr, Field
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
 from app.core.security import get_current_user
+from app.db.session import get_db
+from app.models.datasource import DataSource
+from app.models.system_setting import SystemSetting
+from app.models.user import User
+from app.services.scheduler import sync_datasource_job
 
 router = APIRouter()
 
-default_settings = {
+DEFAULT_SETTINGS = {
     "system": {
         "system_name": "智能星球",
         "refresh_interval": 60,
@@ -29,17 +37,13 @@ default_settings = {
     },
 }
 
-system_settings = default_settings["system"].copy()
-notification_settings = default_settings["notifications"].copy()
-security_settings = default_settings["security"].copy()
-
 
 class SystemSettingsUpdate(BaseModel):
     system_name: str = "智能星球"
-    refresh_interval: int = 60
+    refresh_interval: int = Field(default=60, ge=10, le=3600)
     auto_refresh: bool = True
-    data_retention_days: int = 30
-    max_concurrent_tasks: int = 5
+    data_retention_days: int = Field(default=30, ge=1, le=3650)
+    max_concurrent_tasks: int = Field(default=5, ge=1, le=50)
 
 
 class NotificationSettingsUpdate(BaseModel):
@@ -51,60 +55,166 @@ class NotificationSettingsUpdate(BaseModel):
 
 
 class SecuritySettingsUpdate(BaseModel):
-    session_timeout: int = 60
-    max_login_attempts: int = 5
-    password_policy: str = "medium"
+    session_timeout: int = Field(default=60, ge=5, le=1440)
+    max_login_attempts: int = Field(default=5, ge=1, le=20)
+    password_policy: str = Field(default="medium")
+
+
+class CollectorSettingsUpdate(BaseModel):
+    is_active: bool
+    priority: str = Field(default="P1")
+    frequency_minutes: int = Field(default=60, ge=1, le=10080)
+
+
+def merge_with_defaults(category: str, payload: Optional[dict]) -> dict:
+    merged = DEFAULT_SETTINGS[category].copy()
+    if payload:
+        merged.update(payload)
+    return merged
+
+
+async def get_setting_record(db: AsyncSession, category: str) -> Optional[SystemSetting]:
+    result = await db.execute(select(SystemSetting).where(SystemSetting.category == category))
+    return result.scalar_one_or_none()
+
+
+async def get_setting_payload(db: AsyncSession, category: str) -> dict:
+    record = await get_setting_record(db, category)
+    return merge_with_defaults(category, record.payload if record else None)
+
+
+async def save_setting_payload(db: AsyncSession, category: str, payload: dict) -> dict:
+    record = await get_setting_record(db, category)
+    if record is None:
+        record = SystemSetting(category=category, payload=payload)
+        db.add(record)
+    else:
+        record.payload = payload
+
+    await db.commit()
+    await db.refresh(record)
+    return merge_with_defaults(category, record.payload)
+
+
+def format_frequency_label(minutes: int) -> str:
+    if minutes % 1440 == 0:
+        return f"{minutes // 1440}d"
+    if minutes % 60 == 0:
+        return f"{minutes // 60}h"
+    return f"{minutes}m"
+
+
+def serialize_collector(datasource: DataSource) -> dict:
+    return {
+        "id": datasource.id,
+        "name": datasource.name,
+        "source": datasource.source,
+        "module": datasource.module,
+        "priority": datasource.priority,
+        "frequency_minutes": datasource.frequency_minutes,
+        "frequency": format_frequency_label(datasource.frequency_minutes),
+        "is_active": datasource.is_active,
+        "last_run_at": datasource.last_run_at.isoformat() if datasource.last_run_at else None,
+        "last_status": datasource.last_status,
+        "next_run_at": datasource.next_run_at.isoformat() if datasource.next_run_at else None,
+    }
 
 
 @router.get("/system")
-async def get_system_settings(current_user: User = Depends(get_current_user)):
-    return {"system": system_settings}
+async def get_system_settings(
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    return {"system": await get_setting_payload(db, "system")}
 
 
 @router.put("/system")
 async def update_system_settings(
     settings: SystemSettingsUpdate,
     current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
 ):
-    global system_settings
-    system_settings = settings.model_dump()
-    return {"status": "updated", "system": system_settings}
+    payload = await save_setting_payload(db, "system", settings.model_dump())
+    return {"status": "updated", "system": payload}
 
 
 @router.get("/notifications")
-async def get_notification_settings(current_user: User = Depends(get_current_user)):
-    return {"notifications": notification_settings}
+async def get_notification_settings(
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    return {"notifications": await get_setting_payload(db, "notifications")}
 
 
 @router.put("/notifications")
 async def update_notification_settings(
     settings: NotificationSettingsUpdate,
     current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
 ):
-    global notification_settings
-    notification_settings = settings.model_dump()
-    return {"status": "updated", "notifications": notification_settings}
+    payload = await save_setting_payload(db, "notifications", settings.model_dump())
+    return {"status": "updated", "notifications": payload}
 
 
 @router.get("/security")
-async def get_security_settings(current_user: User = Depends(get_current_user)):
-    return {"security": security_settings}
+async def get_security_settings(
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    return {"security": await get_setting_payload(db, "security")}
 
 
 @router.put("/security")
 async def update_security_settings(
     settings: SecuritySettingsUpdate,
     current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
 ):
-    global security_settings
-    security_settings = settings.model_dump()
-    return {"status": "updated", "security": security_settings}
+    payload = await save_setting_payload(db, "security", settings.model_dump())
+    return {"status": "updated", "security": payload}
+
+
+@router.get("/collectors")
+async def get_collector_settings(
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    result = await db.execute(select(DataSource).order_by(DataSource.module, DataSource.id))
+    datasources = result.scalars().all()
+    return {"collectors": [serialize_collector(datasource) for datasource in datasources]}
+
+
+@router.put("/collectors/{datasource_id}")
+async def update_collector_settings(
+    datasource_id: int,
+    settings: CollectorSettingsUpdate,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    datasource = await db.get(DataSource, datasource_id)
+    if not datasource:
+        raise HTTPException(status_code=404, detail="Data source not found")
+
+    datasource.is_active = settings.is_active
+    datasource.priority = settings.priority
+    datasource.frequency_minutes = settings.frequency_minutes
+    await db.commit()
+    await db.refresh(datasource)
+    await sync_datasource_job(datasource.id)
+    return {"status": "updated", "collector": serialize_collector(datasource)}
 
 
 @router.get("")
-async def get_all_settings(current_user: User = Depends(get_current_user)):
+async def get_all_settings(
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    result = await db.execute(select(DataSource).order_by(DataSource.module, DataSource.id))
+    datasources = result.scalars().all()
     return {
-        "system": system_settings,
-        "notifications": notification_settings,
-        "security": security_settings,
-    }
+        "system": await get_setting_payload(db, "system"),
+        "notifications": await get_setting_payload(db, "notifications"),
+        "security": await get_setting_payload(db, "security"),
+        "collectors": [serialize_collector(datasource) for datasource in datasources],
+        "generated_at": datetime.utcnow().isoformat() + "Z",
+    }

backend/app/api/v1/tasks.py

@@ -10,6 +10,7 @@ from app.models.user import User
 from app.core.security import get_current_user
 from app.services.collectors.registry import collector_registry
 
+
 router = APIRouter()
 
 

backend/app/api/v1/visualization.py

@@ -1,10 +1,16 @@
-"""Visualization API - GeoJSON endpoints for 3D Earth display"""
+"""Visualization API - GeoJSON endpoints for 3D Earth display
 
+Unified API for all visualization data sources.
+Returns GeoJSON format compatible with Three.js, CesiumJS, and Unreal Cesium.
+"""
+
+from datetime import datetime
 from fastapi import APIRouter, HTTPException, Depends
 from sqlalchemy.ext.asyncio import AsyncSession
-from sqlalchemy import select
+from sqlalchemy import select, func
 from typing import List, Dict, Any, Optional
 
+from app.core.collected_data_fields import get_record_field
 from app.db.session import get_db
 from app.models.collected_data import CollectedData
 from app.services.cable_graph import build_graph_from_data, CableGraph
@@ -12,6 +18,9 @@ from app.services.cable_graph import build_graph_from_data, CableGraph
 router = APIRouter()
 
 
+# ============== Converter Functions ==============
+
+
 def convert_cable_to_geojson(records: List[CollectedData]) -> Dict[str, Any]:
     """Convert cable records to GeoJSON FeatureCollection"""
     features = []
@@ -66,6 +75,7 @@ def convert_cable_to_geojson(records: List[CollectedData]) -> Dict[str, Any]:
                 "geometry": {"type": "MultiLineString", "coordinates": all_lines},
                 "properties": {
                     "id": record.id,
+                    "cable_id": record.name,
                     "source_id": record.source_id,
                     "Name": record.name,
                     "name": record.name,
@@ -74,9 +84,9 @@ def convert_cable_to_geojson(records: List[CollectedData]) -> Dict[str, Any]:
                     "rfs": metadata.get("rfs"),
                     "RFS": metadata.get("rfs"),
                     "status": metadata.get("status", "active"),
-                    "length": record.value,
-                    "length_km": record.value,
-                    "SHAPE__Length": record.value,
+                    "length": get_record_field(record, "value"),
+                    "length_km": get_record_field(record, "value"),
+                    "SHAPE__Length": get_record_field(record, "value"),
                     "url": metadata.get("url"),
                     "color": metadata.get("color"),
                     "year": metadata.get("year"),
@@ -87,33 +97,124 @@ def convert_cable_to_geojson(records: List[CollectedData]) -> Dict[str, Any]:
     return {"type": "FeatureCollection", "features": features}
 
 
-def convert_landing_point_to_geojson(records: List[CollectedData]) -> Dict[str, Any]:
-    """Convert landing point records to GeoJSON FeatureCollection"""
+def convert_landing_point_to_geojson(records: List[CollectedData], city_to_cable_ids_map: Dict[int, List[int]] = None, cable_id_to_name_map: Dict[int, str] = None) -> Dict[str, Any]:
+    features = []
+    
+    for record in records:
+        try:
+            latitude = get_record_field(record, "latitude")
+            longitude = get_record_field(record, "longitude")
+            lat = float(latitude) if latitude else None
+            lon = float(longitude) if longitude else None
+        except (ValueError, TypeError):
+            continue
+        
+        if lat is None or lon is None:
+            continue
+        
+        metadata = record.extra_data or {}
+        city_id = metadata.get("city_id")
+        
+        props = {
+            "id": record.id,
+            "source_id": record.source_id,
+            "name": record.name,
+            "country": get_record_field(record, "country"),
+            "city": get_record_field(record, "city"),
+            "is_tbd": metadata.get("is_tbd", False),
+        }
+        
+        cable_names = []
+        if city_to_cable_ids_map and city_id in city_to_cable_ids_map:
+            for cable_id in city_to_cable_ids_map[city_id]:
+                if cable_id_to_name_map and cable_id in cable_id_to_name_map:
+                    cable_names.append(cable_id_to_name_map[cable_id])
+        
+        if cable_names:
+            props["cable_names"] = cable_names
+        
+        features.append(
+            {
+                "type": "Feature",
+                "geometry": {"type": "Point", "coordinates": [lon, lat]},
+                "properties": props,
+            }
+        )
+    
+    return {"type": "FeatureCollection", "features": features}
+
+
+def convert_satellite_to_geojson(records: List[CollectedData]) -> Dict[str, Any]:
+    """Convert satellite TLE records to GeoJSON"""
+    features = []
+
+    for record in records:
+        metadata = record.extra_data or {}
+        norad_id = metadata.get("norad_cat_id")
+
+        if not norad_id:
+            continue
+
+        features.append(
+            {
+                "type": "Feature",
+                "id": norad_id,
+                "geometry": {"type": "Point", "coordinates": [0, 0, 0]},
+                "properties": {
+                    "id": record.id,
+                    "norad_cat_id": norad_id,
+                    "name": record.name,
+                    "international_designator": metadata.get("international_designator"),
+                    "epoch": metadata.get("epoch"),
+                    "inclination": metadata.get("inclination"),
+                    "raan": metadata.get("raan"),
+                    "eccentricity": metadata.get("eccentricity"),
+                    "arg_of_perigee": metadata.get("arg_of_perigee"),
+                    "mean_anomaly": metadata.get("mean_anomaly"),
+                    "mean_motion": metadata.get("mean_motion"),
+                    "bstar": metadata.get("bstar"),
+                    "classification_type": metadata.get("classification_type"),
+                    "data_type": "satellite_tle",
+                },
+            }
+        )
+
+    return {"type": "FeatureCollection", "features": features}
+
+
+def convert_supercomputer_to_geojson(records: List[CollectedData]) -> Dict[str, Any]:
+    """Convert TOP500 supercomputer records to GeoJSON"""
     features = []
 
     for record in records:
         try:
-            lat = float(record.latitude) if record.latitude else None
-            lon = float(record.longitude) if record.longitude else None
+            latitude = get_record_field(record, "latitude")
+            longitude = get_record_field(record, "longitude")
+            lat = float(latitude) if latitude and latitude != "0.0" else None
+            lon = (
+                float(longitude) if longitude and longitude != "0.0" else None
+            )
         except (ValueError, TypeError):
-            continue
-
-        if lat is None or lon is None:
-            continue
+            lat, lon = None, None
 
         metadata = record.extra_data or {}
 
         features.append(
             {
                 "type": "Feature",
-                "geometry": {"type": "Point", "coordinates": [lon, lat]},
+                "id": record.id,
+                "geometry": {"type": "Point", "coordinates": [lon or 0, lat or 0]},
                 "properties": {
                     "id": record.id,
-                    "source_id": record.source_id,
                     "name": record.name,
-                    "country": record.country,
-                    "city": record.city,
-                    "is_tbd": metadata.get("is_tbd", False),
+                    "rank": metadata.get("rank"),
+                    "r_max": get_record_field(record, "rmax"),
+                    "r_peak": get_record_field(record, "rpeak"),
+                    "cores": get_record_field(record, "cores"),
+                    "power": get_record_field(record, "power"),
+                    "country": get_record_field(record, "country"),
+                    "city": get_record_field(record, "city"),
+                    "data_type": "supercomputer",
                 },
             }
         )
@@ -121,6 +222,43 @@ def convert_landing_point_to_geojson(records: List[CollectedData]) -> Dict[str,
     return {"type": "FeatureCollection", "features": features}
 
 
+def convert_gpu_cluster_to_geojson(records: List[CollectedData]) -> Dict[str, Any]:
+    """Convert GPU cluster records to GeoJSON"""
+    features = []
+
+    for record in records:
+        try:
+            latitude = get_record_field(record, "latitude")
+            longitude = get_record_field(record, "longitude")
+            lat = float(latitude) if latitude else None
+            lon = float(longitude) if longitude else None
+        except (ValueError, TypeError):
+            lat, lon = None, None
+
+        metadata = record.extra_data or {}
+
+        features.append(
+            {
+                "type": "Feature",
+                "id": record.id,
+                "geometry": {"type": "Point", "coordinates": [lon or 0, lat or 0]},
+                "properties": {
+                    "id": record.id,
+                    "name": record.name,
+                    "country": get_record_field(record, "country"),
+                    "city": get_record_field(record, "city"),
+                    "metadata": metadata,
+                    "data_type": "gpu_cluster",
+                },
+            }
+        )
+
+    return {"type": "FeatureCollection", "features": features}
+
+
+# ============== API Endpoints ==============
+
+
 @router.get("/geo/cables")
 async def get_cables_geojson(db: AsyncSession = Depends(get_db)):
     """获取海底电缆 GeoJSON 数据 (LineString)"""
@@ -144,19 +282,45 @@ async def get_cables_geojson(db: AsyncSession = Depends(get_db)):
 
 @router.get("/geo/landing-points")
 async def get_landing_points_geojson(db: AsyncSession = Depends(get_db)):
-    """获取登陆点 GeoJSON 数据 (Point)"""
     try:
-        stmt = select(CollectedData).where(CollectedData.source == "fao_landing_points")
-        result = await db.execute(stmt)
-        records = result.scalars().all()
-
+        landing_stmt = select(CollectedData).where(CollectedData.source == "arcgis_landing_points")
+        landing_result = await db.execute(landing_stmt)
+        records = landing_result.scalars().all()
+        
+        relation_stmt = select(CollectedData).where(CollectedData.source == "arcgis_cable_landing_relation")
+        relation_result = await db.execute(relation_stmt)
+        relation_records = relation_result.scalars().all()
+        
+        cable_stmt = select(CollectedData).where(CollectedData.source == "arcgis_cables")
+        cable_result = await db.execute(cable_stmt)
+        cable_records = cable_result.scalars().all()
+        
+        city_to_cable_ids_map = {}
+        for rel in relation_records:
+            if rel.extra_data:
+                city_id = rel.extra_data.get("city_id")
+                cable_id = rel.extra_data.get("cable_id")
+                if city_id is not None and cable_id is not None:
+                    if city_id not in city_to_cable_ids_map:
+                        city_to_cable_ids_map[city_id] = []
+                    if cable_id not in city_to_cable_ids_map[city_id]:
+                        city_to_cable_ids_map[city_id].append(cable_id)
+        
+        cable_id_to_name_map = {}
+        for cable in cable_records:
+            if cable.extra_data:
+                cable_id = cable.extra_data.get("cable_id")
+                cable_name = cable.name
+                if cable_id and cable_name:
+                    cable_id_to_name_map[cable_id] = cable_name
+        
         if not records:
             raise HTTPException(
                 status_code=404,
-                detail="No landing point data found. Please run the fao_landing_points collector first.",
+                detail="No landing point data found. Please run the arcgis_landing_points collector first.",
             )
-
-        return convert_landing_point_to_geojson(records)
+        
+        return convert_landing_point_to_geojson(records, city_to_cable_ids_map, cable_id_to_name_map)
     except HTTPException:
         raise
     except Exception as e:
@@ -165,14 +329,36 @@ async def get_landing_points_geojson(db: AsyncSession = Depends(get_db)):
 
 @router.get("/geo/all")
 async def get_all_geojson(db: AsyncSession = Depends(get_db)):
-    """获取所有可视化数据 (电缆 + 登陆点)"""
     cables_stmt = select(CollectedData).where(CollectedData.source == "arcgis_cables")
     cables_result = await db.execute(cables_stmt)
     cables_records = cables_result.scalars().all()
 
-    points_stmt = select(CollectedData).where(CollectedData.source == "fao_landing_points")
+    points_stmt = select(CollectedData).where(CollectedData.source == "arcgis_landing_points")
     points_result = await db.execute(points_stmt)
     points_records = points_result.scalars().all()
+    
+    relation_stmt = select(CollectedData).where(CollectedData.source == "arcgis_cable_landing_relation")
+    relation_result = await db.execute(relation_stmt)
+    relation_records = relation_result.scalars().all()
+    
+    city_to_cable_ids_map = {}
+    for rel in relation_records:
+        if rel.extra_data:
+            city_id = rel.extra_data.get("city_id")
+            cable_id = rel.extra_data.get("cable_id")
+            if city_id is not None and cable_id is not None:
+                if city_id not in city_to_cable_ids_map:
+                    city_to_cable_ids_map[city_id] = []
+                if cable_id not in city_to_cable_ids_map[city_id]:
+                    city_to_cable_ids_map[city_id].append(cable_id)
+    
+    cable_id_to_name_map = {}
+    for cable in cables_records:
+        if cable.extra_data:
+            cable_id = cable.extra_data.get("cable_id")
+            cable_name = cable.name
+            if cable_id and cable_name:
+                cable_id_to_name_map[cable_id] = cable_name
 
     cables = (
         convert_cable_to_geojson(cables_records)
@@ -180,7 +366,7 @@ async def get_all_geojson(db: AsyncSession = Depends(get_db)):
         else {"type": "FeatureCollection", "features": []}
     )
     points = (
-        convert_landing_point_to_geojson(points_records)
+        convert_landing_point_to_geojson(points_records, city_to_cable_ids_map, cable_id_to_name_map)
         if points_records
         else {"type": "FeatureCollection", "features": []}
     )
@@ -195,6 +381,178 @@ async def get_all_geojson(db: AsyncSession = Depends(get_db)):
     }
 
 
+@router.get("/geo/satellites")
+async def get_satellites_geojson(
+    limit: int = 10000,
+    db: AsyncSession = Depends(get_db),
+):
+    """获取卫星 TLE GeoJSON 数据"""
+    stmt = (
+        select(CollectedData)
+        .where(CollectedData.source == "celestrak_tle")
+        .where(CollectedData.name != "Unknown")
+        .order_by(CollectedData.id.desc())
+        .limit(limit)
+    )
+    result = await db.execute(stmt)
+    records = result.scalars().all()
+
+    if not records:
+        return {"type": "FeatureCollection", "features": [], "count": 0}
+
+    geojson = convert_satellite_to_geojson(list(records))
+    return {
+        **geojson,
+        "count": len(geojson.get("features", [])),
+    }
+
+
+@router.get("/geo/supercomputers")
+async def get_supercomputers_geojson(
+    limit: int = 500,
+    db: AsyncSession = Depends(get_db),
+):
+    """获取 TOP500 超算中心 GeoJSON 数据"""
+    stmt = (
+        select(CollectedData)
+        .where(CollectedData.source == "top500")
+        .where(CollectedData.name != "Unknown")
+        .limit(limit)
+    )
+    result = await db.execute(stmt)
+    records = result.scalars().all()
+
+    if not records:
+        return {"type": "FeatureCollection", "features": [], "count": 0}
+
+    geojson = convert_supercomputer_to_geojson(list(records))
+    return {
+        **geojson,
+        "count": len(geojson.get("features", [])),
+    }
+
+
+@router.get("/geo/gpu-clusters")
+async def get_gpu_clusters_geojson(
+    limit: int = 100,
+    db: AsyncSession = Depends(get_db),
+):
+    """获取 GPU 集群 GeoJSON 数据"""
+    stmt = (
+        select(CollectedData)
+        .where(CollectedData.source == "epoch_ai_gpu")
+        .where(CollectedData.name != "Unknown")
+        .limit(limit)
+    )
+    result = await db.execute(stmt)
+    records = result.scalars().all()
+
+    if not records:
+        return {"type": "FeatureCollection", "features": [], "count": 0}
+
+    geojson = convert_gpu_cluster_to_geojson(list(records))
+    return {
+        **geojson,
+        "count": len(geojson.get("features", [])),
+    }
+
+
+@router.get("/all")
+async def get_all_visualization_data(db: AsyncSession = Depends(get_db)):
+    """获取所有可视化数据的统一端点
+
+    Returns GeoJSON FeatureCollections for all data types:
+    - satellites: 卫星 TLE 数据
+    - cables: 海底电缆
+    - landing_points: 登陆点
+    - supercomputers: TOP500 超算
+    - gpu_clusters: GPU 集群
+    """
+    cables_stmt = select(CollectedData).where(CollectedData.source == "arcgis_cables")
+    cables_result = await db.execute(cables_stmt)
+    cables_records = list(cables_result.scalars().all())
+
+    points_stmt = select(CollectedData).where(CollectedData.source == "arcgis_landing_points")
+    points_result = await db.execute(points_stmt)
+    points_records = list(points_result.scalars().all())
+
+    satellites_stmt = (
+        select(CollectedData)
+        .where(CollectedData.source == "celestrak_tle")
+        .where(CollectedData.name != "Unknown")
+    )
+    satellites_result = await db.execute(satellites_stmt)
+    satellites_records = list(satellites_result.scalars().all())
+
+    supercomputers_stmt = (
+        select(CollectedData)
+        .where(CollectedData.source == "top500")
+        .where(CollectedData.name != "Unknown")
+    )
+    supercomputers_result = await db.execute(supercomputers_stmt)
+    supercomputers_records = list(supercomputers_result.scalars().all())
+
+    gpu_stmt = (
+        select(CollectedData)
+        .where(CollectedData.source == "epoch_ai_gpu")
+        .where(CollectedData.name != "Unknown")
+    )
+    gpu_result = await db.execute(gpu_stmt)
+    gpu_records = list(gpu_result.scalars().all())
+
+    cables = (
+        convert_cable_to_geojson(cables_records)
+        if cables_records
+        else {"type": "FeatureCollection", "features": []}
+    )
+    landing_points = (
+        convert_landing_point_to_geojson(points_records)
+        if points_records
+        else {"type": "FeatureCollection", "features": []}
+    )
+    satellites = (
+        convert_satellite_to_geojson(satellites_records)
+        if satellites_records
+        else {"type": "FeatureCollection", "features": []}
+    )
+    supercomputers = (
+        convert_supercomputer_to_geojson(supercomputers_records)
+        if supercomputers_records
+        else {"type": "FeatureCollection", "features": []}
+    )
+    gpu_clusters = (
+        convert_gpu_cluster_to_geojson(gpu_records)
+        if gpu_records
+        else {"type": "FeatureCollection", "features": []}
+    )
+
+    return {
+        "generated_at": datetime.utcnow().isoformat() + "Z",
+        "version": "1.0",
+        "data": {
+            "satellites": satellites,
+            "cables": cables,
+            "landing_points": landing_points,
+            "supercomputers": supercomputers,
+            "gpu_clusters": gpu_clusters,
+        },
+        "stats": {
+            "total_features": (
+                len(satellites.get("features", []))
+                + len(cables.get("features", []))
+                + len(landing_points.get("features", []))
+                + len(supercomputers.get("features", []))
+                + len(gpu_clusters.get("features", []))
+            ),
+            "satellites": len(satellites.get("features", [])),
+            "cables": len(cables.get("features", [])),
+            "landing_points": len(landing_points.get("features", [])),
+            "supercomputers": len(supercomputers.get("features", [])),
+            "gpu_clusters": len(gpu_clusters.get("features", [])),
+        },
+    }
+
+
 # Cache for cable graph
 _cable_graph: Optional[CableGraph] = None
 
@@ -208,7 +566,7 @@ async def get_cable_graph(db: AsyncSession) -> CableGraph:
         cables_result = await db.execute(cables_stmt)
         cables_records = list(cables_result.scalars().all())
 
-        points_stmt = select(CollectedData).where(CollectedData.source == "fao_landing_points")
+        points_stmt = select(CollectedData).where(CollectedData.source == "arcgis_landing_points")
         points_result = await db.execute(points_stmt)
         points_records = list(points_result.scalars().all())
 

backend/app/core/collected_data_fields.py

@@ -0,0 +1,62 @@
+from typing import Any, Dict, Optional
+
+
+FIELD_ALIASES = {
+    "country": ("country",),
+    "city": ("city",),
+    "latitude": ("latitude",),
+    "longitude": ("longitude",),
+    "value": ("value",),
+    "unit": ("unit",),
+    "cores": ("cores",),
+    "rmax": ("rmax", "r_max"),
+    "rpeak": ("rpeak", "r_peak"),
+    "power": ("power",),
+}
+
+
+def get_metadata_field(metadata: Optional[Dict[str, Any]], field: str, fallback: Any = None) -> Any:
+    if isinstance(metadata, dict):
+        for key in FIELD_ALIASES.get(field, (field,)):
+            value = metadata.get(key)
+            if value not in (None, ""):
+                return value
+    return fallback
+
+
+def build_dynamic_metadata(
+    metadata: Optional[Dict[str, Any]],
+    *,
+    country: Any = None,
+    city: Any = None,
+    latitude: Any = None,
+    longitude: Any = None,
+    value: Any = None,
+    unit: Any = None,
+) -> Dict[str, Any]:
+    merged = dict(metadata) if isinstance(metadata, dict) else {}
+
+    fallbacks = {
+        "country": country,
+        "city": city,
+        "latitude": latitude,
+        "longitude": longitude,
+        "value": value,
+        "unit": unit,
+    }
+
+    for field, fallback in fallbacks.items():
+        if fallback not in (None, "") and get_metadata_field(merged, field) in (None, ""):
+            merged[field] = fallback
+
+    return merged
+
+
+def get_record_field(record: Any, field: str) -> Any:
+    metadata = getattr(record, "extra_data", None) or {}
+    fallback_attr = field
+    if field in {"cores", "rmax", "rpeak", "power"}:
+        fallback = None
+    else:
+        fallback = getattr(record, fallback_attr, None)
+    return get_metadata_field(metadata, field, fallback=fallback)

backend/app/core/config.py

@@ -6,9 +6,16 @@ import os
 from pydantic_settings import BaseSettings
 
 
+ROOT_DIR = Path(__file__).parent.parent.parent.parent
+VERSION_FILE = ROOT_DIR / "VERSION"
+
+
 class Settings(BaseSettings):
     PROJECT_NAME: str = "Intelligent Planet Plan"
-    VERSION: str = "1.0.0"
+    VERSION: str = (
+        os.getenv("APP_VERSION")
+        or (VERSION_FILE.read_text(encoding="utf-8").strip() if VERSION_FILE.exists() else "0.19.0")
+    )
     API_V1_STR: str = "/api/v1"
     SECRET_KEY: str = "your-secret-key-change-in-production"
     ALGORITHM: str = "HS256"
@@ -27,6 +34,9 @@ class Settings(BaseSettings):
 
     CORS_ORIGINS: List[str] = ["http://localhost:3000", "http://localhost:8000"]
 
+    SPACETRACK_USERNAME: str = ""
+    SPACETRACK_PASSWORD: str = ""
+
     @property
     def REDIS_URL(self) -> str:
         return os.getenv(
@@ -34,7 +44,7 @@ class Settings(BaseSettings):
         )
 
     class Config:
-        env_file = ".env"
+        env_file = Path(__file__).parent.parent.parent / ".env"
         case_sensitive = True
 
 

backend/app/core/countries.py

@@ -0,0 +1,280 @@
+import re
+from typing import Any, Optional
+
+
+COUNTRY_ENTRIES = [
+    ("阿富汗", ["Afghanistan", "AF", "AFG"]),
+    ("阿尔巴尼亚", ["Albania", "AL", "ALB"]),
+    ("阿尔及利亚", ["Algeria", "DZ", "DZA"]),
+    ("安道尔", ["Andorra", "AD", "AND"]),
+    ("安哥拉", ["Angola", "AO", "AGO"]),
+    ("安提瓜和巴布达", ["Antigua and Barbuda", "AG", "ATG"]),
+    ("阿根廷", ["Argentina", "AR", "ARG"]),
+    ("亚美尼亚", ["Armenia", "AM", "ARM"]),
+    ("澳大利亚", ["Australia", "AU", "AUS"]),
+    ("奥地利", ["Austria", "AT", "AUT"]),
+    ("阿塞拜疆", ["Azerbaijan", "AZ", "AZE"]),
+    ("巴哈马", ["Bahamas", "BS", "BHS"]),
+    ("巴林", ["Bahrain", "BH", "BHR"]),
+    ("孟加拉国", ["Bangladesh", "BD", "BGD"]),
+    ("巴巴多斯", ["Barbados", "BB", "BRB"]),
+    ("白俄罗斯", ["Belarus", "BY", "BLR"]),
+    ("比利时", ["Belgium", "BE", "BEL"]),
+    ("伯利兹", ["Belize", "BZ", "BLZ"]),
+    ("贝宁", ["Benin", "BJ", "BEN"]),
+    ("不丹", ["Bhutan", "BT", "BTN"]),
+    ("玻利维亚", ["Bolivia", "BO", "BOL", "Bolivia (Plurinational State of)"]),
+    ("波斯尼亚和黑塞哥维那", ["Bosnia and Herzegovina", "BA", "BIH"]),
+    ("博茨瓦纳", ["Botswana", "BW", "BWA"]),
+    ("巴西", ["Brazil", "BR", "BRA"]),
+    ("文莱", ["Brunei", "BN", "BRN", "Brunei Darussalam"]),
+    ("保加利亚", ["Bulgaria", "BG", "BGR"]),
+    ("布基纳法索", ["Burkina Faso", "BF", "BFA"]),
+    ("布隆迪", ["Burundi", "BI", "BDI"]),
+    ("柬埔寨", ["Cambodia", "KH", "KHM"]),
+    ("喀麦隆", ["Cameroon", "CM", "CMR"]),
+    ("加拿大", ["Canada", "CA", "CAN"]),
+    ("佛得角", ["Cape Verde", "CV", "CPV", "Cabo Verde"]),
+    ("中非", ["Central African Republic", "CF", "CAF"]),
+    ("乍得", ["Chad", "TD", "TCD"]),
+    ("智利", ["Chile", "CL", "CHL"]),
+    ("中国", ["China", "CN", "CHN", "Mainland China", "PRC", "People's Republic of China"]),
+    ("中国（香港）", ["Hong Kong", "HK", "HKG", "Hong Kong SAR", "China Hong Kong", "Hong Kong, China"]),
+    ("中国（澳门）", ["Macao", "Macau", "MO", "MAC", "Macao SAR", "China Macao", "Macau, China"]),
+    ("中国（台湾）", ["Taiwan", "TW", "TWN", "Chinese Taipei", "Taiwan, China"]),
+    ("哥伦比亚", ["Colombia", "CO", "COL"]),
+    ("科摩罗", ["Comoros", "KM", "COM"]),
+    ("刚果（布）", ["Republic of the Congo", "Congo", "Congo-Brazzaville", "CG", "COG"]),
+    ("刚果（金）", ["Democratic Republic of the Congo", "DR Congo", "Congo-Kinshasa", "CD", "COD"]),
+    ("哥斯达黎加", ["Costa Rica", "CR", "CRI"]),
+    ("科特迪瓦", ["Cote d'Ivoire", "Côte d'Ivoire", "Ivory Coast", "CI", "CIV"]),
+    ("克罗地亚", ["Croatia", "HR", "HRV"]),
+    ("古巴", ["Cuba", "CU", "CUB"]),
+    ("塞浦路斯", ["Cyprus", "CY", "CYP"]),
+    ("捷克", ["Czech Republic", "Czechia", "CZ", "CZE"]),
+    ("丹麦", ["Denmark", "DK", "DNK"]),
+    ("吉布提", ["Djibouti", "DJ", "DJI"]),
+    ("多米尼克", ["Dominica", "DM", "DMA"]),
+    ("多米尼加", ["Dominican Republic", "DO", "DOM"]),
+    ("厄瓜多尔", ["Ecuador", "EC", "ECU"]),
+    ("埃及", ["Egypt", "EG", "EGY"]),
+    ("萨尔瓦多", ["El Salvador", "SV", "SLV"]),
+    ("赤道几内亚", ["Equatorial Guinea", "GQ", "GNQ"]),
+    ("厄立特里亚", ["Eritrea", "ER", "ERI"]),
+    ("爱沙尼亚", ["Estonia", "EE", "EST"]),
+    ("埃斯瓦蒂尼", ["Eswatini", "SZ", "SWZ", "Swaziland"]),
+    ("埃塞俄比亚", ["Ethiopia", "ET", "ETH"]),
+    ("斐济", ["Fiji", "FJ", "FJI"]),
+    ("芬兰", ["Finland", "FI", "FIN"]),
+    ("法国", ["France", "FR", "FRA"]),
+    ("加蓬", ["Gabon", "GA", "GAB"]),
+    ("冈比亚", ["Gambia", "GM", "GMB"]),
+    ("格鲁吉亚", ["Georgia", "GE", "GEO"]),
+    ("德国", ["Germany", "DE", "DEU"]),
+    ("加纳", ["Ghana", "GH", "GHA"]),
+    ("希腊", ["Greece", "GR", "GRC"]),
+    ("格林纳达", ["Grenada", "GD", "GRD"]),
+    ("危地马拉", ["Guatemala", "GT", "GTM"]),
+    ("几内亚", ["Guinea", "GN", "GIN"]),
+    ("几内亚比绍", ["Guinea-Bissau", "GW", "GNB"]),
+    ("圭亚那", ["Guyana", "GY", "GUY"]),
+    ("海地", ["Haiti", "HT", "HTI"]),
+    ("洪都拉斯", ["Honduras", "HN", "HND"]),
+    ("匈牙利", ["Hungary", "HU", "HUN"]),
+    ("冰岛", ["Iceland", "IS", "ISL"]),
+    ("印度", ["India", "IN", "IND"]),
+    ("印度尼西亚", ["Indonesia", "ID", "IDN"]),
+    ("伊朗", ["Iran", "IR", "IRN", "Iran (Islamic Republic of)"]),
+    ("伊拉克", ["Iraq", "IQ", "IRQ"]),
+    ("爱尔兰", ["Ireland", "IE", "IRL"]),
+    ("以色列", ["Israel", "IL", "ISR"]),
+    ("意大利", ["Italy", "IT", "ITA"]),
+    ("牙买加", ["Jamaica", "JM", "JAM"]),
+    ("日本", ["Japan", "JP", "JPN"]),
+    ("约旦", ["Jordan", "JO", "JOR"]),
+    ("哈萨克斯坦", ["Kazakhstan", "KZ", "KAZ"]),
+    ("肯尼亚", ["Kenya", "KE", "KEN"]),
+    ("基里巴斯", ["Kiribati", "KI", "KIR"]),
+    ("朝鲜", ["North Korea", "Korea, DPRK", "Democratic People's Republic of Korea", "KP", "PRK"]),
+    ("韩国", ["South Korea", "Republic of Korea", "Korea", "KR", "KOR"]),
+    ("科威特", ["Kuwait", "KW", "KWT"]),
+    ("吉尔吉斯斯坦", ["Kyrgyzstan", "KG", "KGZ"]),
+    ("老挝", ["Laos", "Lao PDR", "Lao People's Democratic Republic", "LA", "LAO"]),
+    ("拉脱维亚", ["Latvia", "LV", "LVA"]),
+    ("黎巴嫩", ["Lebanon", "LB", "LBN"]),
+    ("莱索托", ["Lesotho", "LS", "LSO"]),
+    ("利比里亚", ["Liberia", "LR", "LBR"]),
+    ("利比亚", ["Libya", "LY", "LBY"]),
+    ("列支敦士登", ["Liechtenstein", "LI", "LIE"]),
+    ("立陶宛", ["Lithuania", "LT", "LTU"]),
+    ("卢森堡", ["Luxembourg", "LU", "LUX"]),
+    ("马达加斯加", ["Madagascar", "MG", "MDG"]),
+    ("马拉维", ["Malawi", "MW", "MWI"]),
+    ("马来西亚", ["Malaysia", "MY", "MYS"]),
+    ("马尔代夫", ["Maldives", "MV", "MDV"]),
+    ("马里", ["Mali", "ML", "MLI"]),
+    ("马耳他", ["Malta", "MT", "MLT"]),
+    ("马绍尔群岛", ["Marshall Islands", "MH", "MHL"]),
+    ("毛里塔尼亚", ["Mauritania", "MR", "MRT"]),
+    ("毛里求斯", ["Mauritius", "MU", "MUS"]),
+    ("墨西哥", ["Mexico", "MX", "MEX"]),
+    ("密克罗尼西亚", ["Micronesia", "FM", "FSM", "Federated States of Micronesia"]),
+    ("摩尔多瓦", ["Moldova", "MD", "MDA", "Republic of Moldova"]),
+    ("摩纳哥", ["Monaco", "MC", "MCO"]),
+    ("蒙古", ["Mongolia", "MN", "MNG"]),
+    ("黑山", ["Montenegro", "ME", "MNE"]),
+    ("摩洛哥", ["Morocco", "MA", "MAR"]),
+    ("莫桑比克", ["Mozambique", "MZ", "MOZ"]),
+    ("缅甸", ["Myanmar", "MM", "MMR", "Burma"]),
+    ("纳米比亚", ["Namibia", "NA", "NAM"]),
+    ("瑙鲁", ["Nauru", "NR", "NRU"]),
+    ("尼泊尔", ["Nepal", "NP", "NPL"]),
+    ("荷兰", ["Netherlands", "NL", "NLD"]),
+    ("新西兰", ["New Zealand", "NZ", "NZL"]),
+    ("尼加拉瓜", ["Nicaragua", "NI", "NIC"]),
+    ("尼日尔", ["Niger", "NE", "NER"]),
+    ("尼日利亚", ["Nigeria", "NG", "NGA"]),
+    ("北马其顿", ["North Macedonia", "MK", "MKD", "Macedonia"]),
+    ("挪威", ["Norway", "NO", "NOR"]),
+    ("阿曼", ["Oman", "OM", "OMN"]),
+    ("巴基斯坦", ["Pakistan", "PK", "PAK"]),
+    ("帕劳", ["Palau", "PW", "PLW"]),
+    ("巴勒斯坦", ["Palestine", "PS", "PSE", "State of Palestine"]),
+    ("巴拿马", ["Panama", "PA", "PAN"]),
+    ("巴布亚新几内亚", ["Papua New Guinea", "PG", "PNG"]),
+    ("巴拉圭", ["Paraguay", "PY", "PRY"]),
+    ("秘鲁", ["Peru", "PE", "PER"]),
+    ("菲律宾", ["Philippines", "PH", "PHL"]),
+    ("波兰", ["Poland", "PL", "POL"]),
+    ("葡萄牙", ["Portugal", "PT", "PRT"]),
+    ("卡塔尔", ["Qatar", "QA", "QAT"]),
+    ("罗马尼亚", ["Romania", "RO", "ROU"]),
+    ("俄罗斯", ["Russia", "Russian Federation", "RU", "RUS"]),
+    ("卢旺达", ["Rwanda", "RW", "RWA"]),
+    ("圣基茨和尼维斯", ["Saint Kitts and Nevis", "KN", "KNA"]),
+    ("圣卢西亚", ["Saint Lucia", "LC", "LCA"]),
+    ("圣文森特和格林纳丁斯", ["Saint Vincent and the Grenadines", "VC", "VCT"]),
+    ("萨摩亚", ["Samoa", "WS", "WSM"]),
+    ("圣马力诺", ["San Marino", "SM", "SMR"]),
+    ("圣多美和普林西比", ["Sao Tome and Principe", "ST", "STP", "São Tomé and Príncipe"]),
+    ("沙特阿拉伯", ["Saudi Arabia", "SA", "SAU"]),
+    ("塞内加尔", ["Senegal", "SN", "SEN"]),
+    ("塞尔维亚", ["Serbia", "RS", "SRB", "Kosovo", "XK", "XKS", "Republic of Kosovo"]),
+    ("塞舌尔", ["Seychelles", "SC", "SYC"]),
+    ("塞拉利昂", ["Sierra Leone", "SL", "SLE"]),
+    ("新加坡", ["Singapore", "SG", "SGP"]),
+    ("斯洛伐克", ["Slovakia", "SK", "SVK"]),
+    ("斯洛文尼亚", ["Slovenia", "SI", "SVN"]),
+    ("所罗门群岛", ["Solomon Islands", "SB", "SLB"]),
+    ("索马里", ["Somalia", "SO", "SOM"]),
+    ("南非", ["South Africa", "ZA", "ZAF"]),
+    ("南苏丹", ["South Sudan", "SS", "SSD"]),
+    ("西班牙", ["Spain", "ES", "ESP"]),
+    ("斯里兰卡", ["Sri Lanka", "LK", "LKA"]),
+    ("苏丹", ["Sudan", "SD", "SDN"]),
+    ("苏里南", ["Suriname", "SR", "SUR"]),
+    ("瑞典", ["Sweden", "SE", "SWE"]),
+    ("瑞士", ["Switzerland", "CH", "CHE"]),
+    ("叙利亚", ["Syria", "SY", "SYR", "Syrian Arab Republic"]),
+    ("塔吉克斯坦", ["Tajikistan", "TJ", "TJK"]),
+    ("坦桑尼亚", ["Tanzania", "TZ", "TZA", "United Republic of Tanzania"]),
+    ("泰国", ["Thailand", "TH", "THA"]),
+    ("东帝汶", ["Timor-Leste", "East Timor", "TL", "TLS"]),
+    ("多哥", ["Togo", "TG", "TGO"]),
+    ("汤加", ["Tonga", "TO", "TON"]),
+    ("特立尼达和多巴哥", ["Trinidad and Tobago", "TT", "TTO"]),
+    ("突尼斯", ["Tunisia", "TN", "TUN"]),
+    ("土耳其", ["Turkey", "TR", "TUR", "Türkiye"]),
+    ("土库曼斯坦", ["Turkmenistan", "TM", "TKM"]),
+    ("图瓦卢", ["Tuvalu", "TV", "TUV"]),
+    ("乌干达", ["Uganda", "UG", "UGA"]),
+    ("乌克兰", ["Ukraine", "UA", "UKR"]),
+    ("阿联酋", ["United Arab Emirates", "AE", "ARE", "UAE"]),
+    ("英国", ["United Kingdom", "UK", "GB", "GBR", "Great Britain", "Britain", "England"]),
+    ("美国", ["United States", "United States of America", "US", "USA", "U.S.", "U.S.A."]),
+    ("乌拉圭", ["Uruguay", "UY", "URY"]),
+    ("乌兹别克斯坦", ["Uzbekistan", "UZ", "UZB"]),
+    ("瓦努阿图", ["Vanuatu", "VU", "VUT"]),
+    ("梵蒂冈", ["Vatican City", "Holy See", "VA", "VAT"]),
+    ("委内瑞拉", ["Venezuela", "VE", "VEN", "Venezuela (Bolivarian Republic of)"]),
+    ("越南", ["Vietnam", "Viet Nam", "VN", "VNM"]),
+    ("也门", ["Yemen", "YE", "YEM"]),
+    ("赞比亚", ["Zambia", "ZM", "ZMB"]),
+    ("津巴布韦", ["Zimbabwe", "ZW", "ZWE"]),
+]
+
+
+COUNTRY_OPTIONS = [entry[0] for entry in COUNTRY_ENTRIES]
+CANONICAL_COUNTRY_SET = set(COUNTRY_OPTIONS)
+INVALID_COUNTRY_VALUES = {
+    "",
+    "-",
+    "--",
+    "unknown",
+    "n/a",
+    "na",
+    "none",
+    "null",
+    "global",
+    "world",
+    "worldwide",
+    "xx",
+}
+NUMERIC_LIKE_PATTERN = re.compile(r"^[\d\s,._%+\-]+$")
+
+COUNTRY_ALIAS_MAP = {}
+COUNTRY_VARIANTS_MAP = {}
+for canonical, aliases in COUNTRY_ENTRIES:
+    COUNTRY_ALIAS_MAP[canonical.casefold()] = canonical
+    variants = [canonical, *aliases]
+    COUNTRY_VARIANTS_MAP[canonical] = variants
+    for alias in aliases:
+        COUNTRY_ALIAS_MAP[alias.casefold()] = canonical
+
+
+def normalize_country(value: Any) -> Optional[str]:
+    if value is None:
+        return None
+
+    if not isinstance(value, str):
+        return None
+
+    normalized = re.sub(r"\s+", " ", value.strip())
+    normalized = normalized.replace("(", "（").replace(")", "）")
+
+    if not normalized:
+        return None
+
+    lowered = normalized.casefold()
+    if lowered in INVALID_COUNTRY_VALUES:
+        return None
+
+    if NUMERIC_LIKE_PATTERN.fullmatch(normalized):
+        return None
+
+    if normalized in CANONICAL_COUNTRY_SET:
+        return normalized
+
+    return COUNTRY_ALIAS_MAP.get(lowered)
+
+
+def get_country_search_variants(value: Any) -> list[str]:
+    canonical = normalize_country(value)
+    if canonical is None:
+        return []
+
+    variants = []
+    seen = set()
+    for item in COUNTRY_VARIANTS_MAP.get(canonical, [canonical]):
+        if not isinstance(item, str):
+            continue
+        normalized = re.sub(r"\s+", " ", item.strip())
+        if not normalized:
+            continue
+        key = normalized.casefold()
+        if key in seen:
+            continue
+        seen.add(key)
+        variants.append(normalized)
+
+    return variants

backend/app/core/data_sources.py

@@ -0,0 +1,79 @@
+import os
+import yaml
+from functools import lru_cache
+from typing import Optional
+
+
+COLLECTOR_URL_KEYS = {
+    "arcgis_cables": "arcgis.cable_url",
+    "arcgis_landing_points": "arcgis.landing_point_url",
+    "arcgis_cable_landing_relation": "arcgis.cable_landing_relation_url",
+    "fao_landing_points": "fao.landing_point_url",
+    "telegeography_cables": "telegeography.cable_url",
+    "telegeography_landing": "telegeography.landing_point_url",
+    "huggingface_models": "huggingface.models_url",
+    "huggingface_datasets": "huggingface.datasets_url",
+    "huggingface_spaces": "huggingface.spaces_url",
+    "cloudflare_radar_device": "cloudflare.radar_device_url",
+    "cloudflare_radar_traffic": "cloudflare.radar_traffic_url",
+    "cloudflare_radar_top_locations": "cloudflare.radar_top_locations_url",
+    "peeringdb_ixp": "peeringdb.ixp_url",
+    "peeringdb_network": "peeringdb.network_url",
+    "peeringdb_facility": "peeringdb.facility_url",
+    "top500": "top500.url",
+    "epoch_ai_gpu": "epoch_ai.gpu_clusters_url",
+    "spacetrack_tle": "spacetrack.tle_query_url",
+}
+
+
+class DataSourcesConfig:
+    def __init__(self, config_path: str = None):
+        if config_path is None:
+            config_path = os.path.join(os.path.dirname(__file__), "data_sources.yaml")
+
+        self._yaml_config = {}
+        if os.path.exists(config_path):
+            with open(config_path, "r") as f:
+                self._yaml_config = yaml.safe_load(f) or {}
+
+    def get_yaml_url(self, collector_name: str) -> str:
+        key = COLLECTOR_URL_KEYS.get(collector_name, "")
+        if not key:
+            return ""
+
+        parts = key.split(".")
+        value = self._yaml_config
+        for part in parts:
+            if isinstance(value, dict):
+                value = value.get(part, "")
+            else:
+                return ""
+        return value if isinstance(value, str) else ""
+
+    async def get_url(self, collector_name: str, db) -> str:
+        yaml_url = self.get_yaml_url(collector_name)
+
+        if not db:
+            return yaml_url
+
+        try:
+            from sqlalchemy import select
+            from app.models.datasource_config import DataSourceConfig
+
+            query = select(DataSourceConfig).where(
+                DataSourceConfig.name == collector_name, DataSourceConfig.is_active == True
+            )
+            result = await db.execute(query)
+            db_config = result.scalar_one_or_none()
+
+            if db_config and db_config.endpoint:
+                return db_config.endpoint
+        except Exception:
+            pass
+
+        return yaml_url
+
+
+@lru_cache()
+def get_data_sources_config() -> DataSourcesConfig:
+    return DataSourcesConfig()

backend/app/core/data_sources.yaml

@@ -0,0 +1,39 @@
+# Data Sources Configuration
+# All external data source URLs should be configured here
+
+arcgis:
+  cable_url: "https://services.arcgis.com/6DIQcwlPy8knb6sg/ArcGIS/rest/services/SubmarineCables/FeatureServer/2/query"
+  landing_point_url: "https://services.arcgis.com/6DIQcwlPy8knb6sg/ArcGIS/rest/services/SubmarineCables/FeatureServer/1/query"
+  cable_landing_relation_url: "https://services.arcgis.com/6DIQcwlPy8knb6sg/ArcGIS/rest/services/SubmarineCables/FeatureServer/3/query"
+
+fao:
+  landing_point_url: "https://data.apps.fao.org/catalog/dataset/1b75ff21-92f2-4b96-9b7b-98e8aa65ad5d/resource/b6071077-d1d4-4e97-aa00-42e902847c87/download/landing-point-geo.csv"
+
+telegeography:
+  cable_url: "https://raw.githubusercontent.com/lintaojlu/submarine_cable_information/main/cable.json"
+  landing_point_url: "https://raw.githubusercontent.com/lintaojlu/submarine_cable_information/main/landing_point.json"
+
+huggingface:
+  models_url: "https://huggingface.co/api/models"
+  datasets_url: "https://huggingface.co/api/datasets"
+  spaces_url: "https://huggingface.co/api/spaces"
+
+cloudflare:
+  radar_device_url: "https://api.cloudflare.com/client/v4/radar/http/summary/device_type"
+  radar_traffic_url: "https://api.cloudflare.com/client/v4/radar/http/timeseries/requests"
+  radar_top_locations_url: "https://api.cloudflare.com/client/v4/radar/http/top/locations"
+
+peeringdb:
+  ixp_url: "https://www.peeringdb.com/api/ix"
+  network_url: "https://www.peeringdb.com/api/net"
+  facility_url: "https://www.peeringdb.com/api/fac"
+
+top500:
+  url: "https://top500.org/lists/top500/list/2025/11/"
+
+epoch_ai:
+  gpu_clusters_url: "https://epoch.ai/data/gpu-clusters"
+
+spacetrack:
+  base_url: "https://www.space-track.org"
+  tle_query_url: "https://www.space-track.org/basicspacedata/query/class/gp/orderby/EPOCH%20desc/limit/1000/format/json"

backend/app/core/datasource_defaults.py

@@ -0,0 +1,126 @@
+"""Default built-in datasource definitions."""
+
+DEFAULT_DATASOURCES = {
+    "top500": {
+        "id": 1,
+        "name": "TOP500 Supercomputers",
+        "module": "L1",
+        "priority": "P0",
+        "frequency_minutes": 240,
+    },
+    "epoch_ai_gpu": {
+        "id": 2,
+        "name": "Epoch AI GPU Clusters",
+        "module": "L1",
+        "priority": "P0",
+        "frequency_minutes": 360,
+    },
+    "huggingface_models": {
+        "id": 3,
+        "name": "HuggingFace Models",
+        "module": "L2",
+        "priority": "P1",
+        "frequency_minutes": 720,
+    },
+    "huggingface_datasets": {
+        "id": 4,
+        "name": "HuggingFace Datasets",
+        "module": "L2",
+        "priority": "P1",
+        "frequency_minutes": 720,
+    },
+    "huggingface_spaces": {
+        "id": 5,
+        "name": "HuggingFace Spaces",
+        "module": "L2",
+        "priority": "P2",
+        "frequency_minutes": 1440,
+    },
+    "peeringdb_ixp": {
+        "id": 6,
+        "name": "PeeringDB IXP",
+        "module": "L2",
+        "priority": "P1",
+        "frequency_minutes": 1440,
+    },
+    "peeringdb_network": {
+        "id": 7,
+        "name": "PeeringDB Networks",
+        "module": "L2",
+        "priority": "P2",
+        "frequency_minutes": 2880,
+    },
+    "peeringdb_facility": {
+        "id": 8,
+        "name": "PeeringDB Facilities",
+        "module": "L2",
+        "priority": "P2",
+        "frequency_minutes": 2880,
+    },
+    "telegeography_cables": {
+        "id": 9,
+        "name": "Submarine Cables",
+        "module": "L2",
+        "priority": "P1",
+        "frequency_minutes": 10080,
+    },
+    "telegeography_landing": {
+        "id": 10,
+        "name": "Cable Landing Points",
+        "module": "L2",
+        "priority": "P2",
+        "frequency_minutes": 10080,
+    },
+    "telegeography_systems": {
+        "id": 11,
+        "name": "Cable Systems",
+        "module": "L2",
+        "priority": "P2",
+        "frequency_minutes": 10080,
+    },
+    "arcgis_cables": {
+        "id": 15,
+        "name": "ArcGIS Submarine Cables",
+        "module": "L2",
+        "priority": "P1",
+        "frequency_minutes": 10080,
+    },
+    "arcgis_landing_points": {
+        "id": 16,
+        "name": "ArcGIS Landing Points",
+        "module": "L2",
+        "priority": "P1",
+        "frequency_minutes": 10080,
+    },
+    "arcgis_cable_landing_relation": {
+        "id": 17,
+        "name": "ArcGIS Cable-Landing Relations",
+        "module": "L2",
+        "priority": "P1",
+        "frequency_minutes": 10080,
+    },
+    "fao_landing_points": {
+        "id": 18,
+        "name": "FAO Landing Points",
+        "module": "L2",
+        "priority": "P1",
+        "frequency_minutes": 10080,
+    },
+    "spacetrack_tle": {
+        "id": 19,
+        "name": "Space-Track TLE",
+        "module": "L3",
+        "priority": "P2",
+        "frequency_minutes": 1440,
+    },
+    "celestrak_tle": {
+        "id": 20,
+        "name": "CelesTrak TLE",
+        "module": "L3",
+        "priority": "P2",
+        "frequency_minutes": 1440,
+    },
+}
+
+ID_TO_COLLECTOR = {info["id"]: name for name, info in DEFAULT_DATASOURCES.items()}
+COLLECTOR_TO_ID = {name: info["id"] for name, info in DEFAULT_DATASOURCES.items()}

backend/app/core/websocket/broadcaster.py

@@ -7,6 +7,7 @@ from typing import Dict, Any, Optional
 from app.core.websocket.manager import manager
 
 
+
 class DataBroadcaster:
     """Periodically broadcasts data to connected WebSocket clients"""
 

backend/app/db/session.py

@@ -1,5 +1,6 @@
 from typing import AsyncGenerator
 
+from sqlalchemy import text
 from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker
 from sqlalchemy.orm import declarative_base
 
@@ -25,11 +26,102 @@ async def get_db() -> AsyncGenerator[AsyncSession, None]:
             raise
 
 
+async def seed_default_datasources(session: AsyncSession):
+    from app.core.datasource_defaults import DEFAULT_DATASOURCES
+    from app.models.datasource import DataSource
+
+    for source, info in DEFAULT_DATASOURCES.items():
+        existing = await session.get(DataSource, info["id"])
+        if existing:
+            existing.name = info["name"]
+            existing.source = source
+            existing.module = info["module"]
+            existing.priority = info["priority"]
+            existing.frequency_minutes = info["frequency_minutes"]
+            existing.collector_class = source
+            if existing.config is None:
+                existing.config = "{}"
+            continue
+
+        session.add(
+            DataSource(
+                id=info["id"],
+                name=info["name"],
+                source=source,
+                module=info["module"],
+                priority=info["priority"],
+                frequency_minutes=info["frequency_minutes"],
+                collector_class=source,
+                config="{}",
+                is_active=True,
+            )
+        )
+
+    await session.commit()
+
+
 async def init_db():
     import app.models.user  # noqa: F401
     import app.models.gpu_cluster  # noqa: F401
     import app.models.task  # noqa: F401
+    import app.models.data_snapshot  # noqa: F401
     import app.models.datasource  # noqa: F401
+    import app.models.datasource_config  # noqa: F401
+    import app.models.alert  # noqa: F401
+    import app.models.collected_data  # noqa: F401
+    import app.models.system_setting  # noqa: F401
 
     async with engine.begin() as conn:
         await conn.run_sync(Base.metadata.create_all)
+        await conn.execute(
+            text(
+                """
+                ALTER TABLE collected_data
+                ADD COLUMN IF NOT EXISTS snapshot_id INTEGER,
+                ADD COLUMN IF NOT EXISTS task_id INTEGER,
+                ADD COLUMN IF NOT EXISTS entity_key VARCHAR(255),
+                ADD COLUMN IF NOT EXISTS is_current BOOLEAN DEFAULT TRUE,
+                ADD COLUMN IF NOT EXISTS previous_record_id INTEGER,
+                ADD COLUMN IF NOT EXISTS change_type VARCHAR(20),
+                ADD COLUMN IF NOT EXISTS change_summary JSONB DEFAULT '{}'::jsonb,
+                ADD COLUMN IF NOT EXISTS deleted_at TIMESTAMPTZ
+                """
+            )
+        )
+        await conn.execute(
+            text(
+                """
+                ALTER TABLE collection_tasks
+                ADD COLUMN IF NOT EXISTS phase VARCHAR(30) DEFAULT 'queued'
+                """
+            )
+        )
+        await conn.execute(
+            text(
+                """
+                CREATE INDEX IF NOT EXISTS idx_collected_data_source_source_id
+                ON collected_data (source, source_id)
+                """
+            )
+        )
+        await conn.execute(
+            text(
+                """
+                UPDATE collected_data
+                SET entity_key = source || ':' || COALESCE(source_id, id::text)
+                WHERE entity_key IS NULL
+                """
+            )
+        )
+        await conn.execute(
+            text(
+                """
+                UPDATE collected_data
+                SET is_current = TRUE
+                WHERE is_current IS NULL
+                """
+            )
+        )
+
+    async with async_session_factory() as session:
+        await seed_default_datasources(session)

backend/app/main.py

@@ -2,15 +2,19 @@ from contextlib import asynccontextmanager
 
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
-from fastapi.staticfiles import StaticFiles
 from starlette.middleware.base import BaseHTTPMiddleware
 
-from app.core.config import settings
-from app.core.websocket.broadcaster import broadcaster
-from app.db.session import init_db, async_session_factory
 from app.api.main import api_router
 from app.api.v1 import websocket
-from app.services.scheduler import start_scheduler, stop_scheduler
+from app.core.config import settings
+from app.core.websocket.broadcaster import broadcaster
+from app.db.session import init_db
+from app.services.scheduler import (
+    cleanup_stale_running_tasks,
+    start_scheduler,
+    stop_scheduler,
+    sync_scheduler_with_datasources,
+)
 
 
 class WebSocketCORSMiddleware(BaseHTTPMiddleware):
@@ -27,7 +31,9 @@ class WebSocketCORSMiddleware(BaseHTTPMiddleware):
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     await init_db()
+    await cleanup_stale_running_tasks()
     start_scheduler()
+    await sync_scheduler_with_datasources()
     broadcaster.start()
     yield
     broadcaster.stop()
@@ -60,16 +66,11 @@ app.include_router(websocket.router)
 
 @app.get("/health")
 async def health_check():
-    """健康检查端点"""
-    return {
-        "status": "healthy",
-        "version": settings.VERSION,
-    }
+    return {"status": "healthy", "version": settings.VERSION}
 
 
 @app.get("/")
 async def root():
-    """API根目录"""
     return {
         "name": settings.PROJECT_NAME,
         "version": settings.VERSION,
@@ -80,7 +81,6 @@ async def root():
 
 @app.get("/api/v1/scheduler/jobs")
 async def get_scheduler_jobs():
-    """获取调度任务列表"""
     from app.services.scheduler import get_scheduler_jobs
 
-    return {"jobs": get_scheduler_jobs()}
+    return {"jobs": get_scheduler_jobs()}

backend/app/models/__init__.py

@@ -1,15 +1,21 @@
 from app.models.user import User
 from app.models.gpu_cluster import GPUCluster
 from app.models.task import CollectionTask
+from app.models.data_snapshot import DataSnapshot
 from app.models.datasource import DataSource
+from app.models.datasource_config import DataSourceConfig
 from app.models.alert import Alert, AlertSeverity, AlertStatus
+from app.models.system_setting import SystemSetting
 
 __all__ = [
     "User",
     "GPUCluster",
     "CollectionTask",
+    "DataSnapshot",
     "DataSource",
+    "DataSourceConfig",
+    "SystemSetting",
     "Alert",
     "AlertSeverity",
     "AlertStatus",
-]
+]

backend/app/models/collected_data.py

@@ -1,8 +1,9 @@
 """Collected Data model for storing data from all collectors"""
 
-from sqlalchemy import Column, DateTime, Integer, String, Text, JSON, Index
+from sqlalchemy import Boolean, Column, DateTime, ForeignKey, Integer, String, Text, JSON, Index
 from sqlalchemy.sql import func
 
+from app.core.collected_data_fields import get_record_field
 from app.db.session import Base
 
 
@@ -12,8 +13,11 @@ class CollectedData(Base):
     __tablename__ = "collected_data"
 
     id = Column(Integer, primary_key=True, autoincrement=True)
+    snapshot_id = Column(Integer, ForeignKey("data_snapshots.id"), nullable=True, index=True)
+    task_id = Column(Integer, ForeignKey("collection_tasks.id"), nullable=True, index=True)
     source = Column(String(100), nullable=False, index=True)  # e.g., "top500", "huggingface_models"
     source_id = Column(String(100), index=True)  # Original ID from source, e.g., "rank_1"
+    entity_key = Column(String(255), index=True)
     data_type = Column(
         String(50), nullable=False, index=True
     )  # e.g., "supercomputer", "model", "dataset"
@@ -23,16 +27,6 @@ class CollectedData(Base):
     title = Column(String(500))
     description = Column(Text)
 
-    # Location data (for geo visualization)
-    country = Column(String(100))
-    city = Column(String(100))
-    latitude = Column(String(50))
-    longitude = Column(String(50))
-
-    # Performance metrics
-    value = Column(String(100))  # Generic value field (Rmax, Rpeak, etc.)
-    unit = Column(String(20))
-
     # Additional metadata as JSON
     extra_data = Column(
         "metadata", JSON, default={}
@@ -44,11 +38,17 @@ class CollectedData(Base):
 
     # Status
     is_valid = Column(Integer, default=1)  # 1=valid, 0=invalid
+    is_current = Column(Boolean, default=True, index=True)
+    previous_record_id = Column(Integer, ForeignKey("collected_data.id"), nullable=True, index=True)
+    change_type = Column(String(20), nullable=True)
+    change_summary = Column(JSON, default={})
+    deleted_at = Column(DateTime(timezone=True), nullable=True)
 
     # Indexes for common queries
     __table_args__ = (
         Index("idx_collected_data_source_collected", "source", "collected_at"),
         Index("idx_collected_data_source_type", "source", "data_type"),
+        Index("idx_collected_data_source_source_id", "source", "source_id"),
     )
 
     def __repr__(self):
@@ -58,18 +58,21 @@ class CollectedData(Base):
         """Convert to dictionary"""
         return {
             "id": self.id,
+            "snapshot_id": self.snapshot_id,
+            "task_id": self.task_id,
             "source": self.source,
             "source_id": self.source_id,
+            "entity_key": self.entity_key,
             "data_type": self.data_type,
             "name": self.name,
             "title": self.title,
             "description": self.description,
-            "country": self.country,
-            "city": self.city,
-            "latitude": self.latitude,
-            "longitude": self.longitude,
-            "value": self.value,
-            "unit": self.unit,
+            "country": get_record_field(self, "country"),
+            "city": get_record_field(self, "city"),
+            "latitude": get_record_field(self, "latitude"),
+            "longitude": get_record_field(self, "longitude"),
+            "value": get_record_field(self, "value"),
+            "unit": get_record_field(self, "unit"),
             "metadata": self.extra_data,
             "collected_at": self.collected_at.isoformat()
             if self.collected_at is not None
@@ -77,4 +80,9 @@ class CollectedData(Base):
             "reference_date": self.reference_date.isoformat()
             if self.reference_date is not None
             else None,
+            "is_current": self.is_current,
+            "previous_record_id": self.previous_record_id,
+            "change_type": self.change_type,
+            "change_summary": self.change_summary,
+            "deleted_at": self.deleted_at.isoformat() if self.deleted_at is not None else None,
         }

backend/app/models/data_snapshot.py

@@ -0,0 +1,26 @@
+from sqlalchemy import Boolean, Column, DateTime, ForeignKey, Integer, JSON, String
+from sqlalchemy.sql import func
+
+from app.db.session import Base
+
+
+class DataSnapshot(Base):
+    __tablename__ = "data_snapshots"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    datasource_id = Column(Integer, nullable=False, index=True)
+    task_id = Column(Integer, ForeignKey("collection_tasks.id"), nullable=True, index=True)
+    source = Column(String(100), nullable=False, index=True)
+    snapshot_key = Column(String(100), nullable=True, index=True)
+    reference_date = Column(DateTime(timezone=True), nullable=True)
+    started_at = Column(DateTime(timezone=True), server_default=func.now())
+    completed_at = Column(DateTime(timezone=True), nullable=True)
+    record_count = Column(Integer, default=0)
+    status = Column(String(20), nullable=False, default="running")
+    is_current = Column(Boolean, default=True, index=True)
+    parent_snapshot_id = Column(Integer, ForeignKey("data_snapshots.id"), nullable=True, index=True)
+    summary = Column(JSON, default={})
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+
+    def __repr__(self):
+        return f"<DataSnapshot {self.id}: {self.source}/{self.status}>"

backend/app/models/system_setting.py

@@ -0,0 +1,19 @@
+"""Persistent system settings model."""
+
+from sqlalchemy import JSON, Column, DateTime, Integer, String, UniqueConstraint
+from sqlalchemy.sql import func
+
+from app.db.session import Base
+
+
+class SystemSetting(Base):
+    __tablename__ = "system_settings"
+    __table_args__ = (UniqueConstraint("category", name="uq_system_settings_category"),)
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    category = Column(String(50), nullable=False)
+    payload = Column(JSON, nullable=False, default={})
+    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
+
+    def __repr__(self):
+        return f"<SystemSetting {self.category}>"

backend/app/models/task.py

@@ -12,6 +12,7 @@ class CollectionTask(Base):
     id = Column(Integer, primary_key=True, autoincrement=True)
     datasource_id = Column(Integer, nullable=False, index=True)
     status = Column(String(20), nullable=False)  # pending, running, success, failed, cancelled
+    phase = Column(String(30), default="queued")
     started_at = Column(DateTime(timezone=True))
     completed_at = Column(DateTime(timezone=True))
     records_processed = Column(Integer, default=0)

backend/app/services/collectors/__init__.py

@@ -28,6 +28,8 @@ from app.services.collectors.arcgis_cables import ArcGISCableCollector
 from app.services.collectors.fao_landing import FAOLandingPointCollector
 from app.services.collectors.arcgis_landing import ArcGISLandingPointCollector
 from app.services.collectors.arcgis_relation import ArcGISCableLandingRelationCollector
+from app.services.collectors.spacetrack import SpaceTrackTLECollector
+from app.services.collectors.celestrak import CelesTrakTLECollector
 
 collector_registry.register(TOP500Collector())
 collector_registry.register(EpochAIGPUCollector())
@@ -47,3 +49,5 @@ collector_registry.register(ArcGISCableCollector())
 collector_registry.register(FAOLandingPointCollector())
 collector_registry.register(ArcGISLandingPointCollector())
 collector_registry.register(ArcGISCableLandingRelationCollector())
+collector_registry.register(SpaceTrackTLECollector())
+collector_registry.register(CelesTrakTLECollector())

backend/app/services/collectors/arcgis_cables.py

@@ -9,6 +9,8 @@ from datetime import datetime
 import httpx
 
 from app.services.collectors.base import BaseCollector
+from app.core.data_sources import get_data_sources_config
+
 
 
 class ArcGISCableCollector(BaseCollector):
@@ -18,7 +20,14 @@ class ArcGISCableCollector(BaseCollector):
     frequency_hours = 168
     data_type = "submarine_cable"
 
-    base_url = "https://services.arcgis.com/6DIQcwlPy8knb6sg/arcgis/rest/services/SubmarineCables/FeatureServer/2/query"
+    @property
+    def base_url(self) -> str:
+        if self._resolved_url:
+            return self._resolved_url
+        from app.core.data_sources import get_data_sources_config
+
+        config = get_data_sources_config()
+        return config.get_yaml_url("arcgis_cables")
 
     async def fetch(self) -> List[Dict[str, Any]]:
         params = {"where": "1=1", "outFields": "*", "returnGeometry": "true", "f": "geojson"}

backend/app/services/collectors/arcgis_landing.py

@@ -1,12 +1,10 @@
-"""ArcGIS Landing Points Collector
-
-Collects landing point data from ArcGIS GeoJSON API.
-"""
-
 from typing import Dict, Any, List
 from datetime import datetime
+import httpx
 
 from app.services.collectors.base import BaseCollector
+from app.core.data_sources import get_data_sources_config
+
 
 
 class ArcGISLandingPointCollector(BaseCollector):
@@ -16,21 +14,23 @@ class ArcGISLandingPointCollector(BaseCollector):
     frequency_hours = 168
     data_type = "landing_point"
 
-    base_url = "https://services.arcgis.com/6DIQcwlPy8knb6sg/arcgis/rest/services/SubmarineCables/FeatureServer/1/query"
+    @property
+    def base_url(self) -> str:
+        if self._resolved_url:
+            return self._resolved_url
+        from app.core.data_sources import get_data_sources_config
+
+        config = get_data_sources_config()
+        return config.get_yaml_url("arcgis_landing_points")
 
     async def fetch(self) -> List[Dict[str, Any]]:
         params = {"where": "1=1", "outFields": "*", "returnGeometry": "true", "f": "geojson"}
 
-        async with self._get_client() as client:
+        async with httpx.AsyncClient(timeout=60.0) as client:
             response = await client.get(self.base_url, params=params)
             response.raise_for_status()
             return self.parse_response(response.json())
 
-    def _get_client(self):
-        import httpx
-
-        return httpx.AsyncClient(timeout=60.0)
-
     def parse_response(self, data: Dict[str, Any]) -> List[Dict[str, Any]]:
         result = []
 
@@ -39,8 +39,13 @@ class ArcGISLandingPointCollector(BaseCollector):
             props = feature.get("properties", {})
             geometry = feature.get("geometry", {})
 
-            lat = geometry.get("y") if geometry else None
-            lon = geometry.get("x") if geometry else None
+            if geometry.get("type") == "Point":
+                coords = geometry.get("coordinates", [])
+                lon = coords[0] if len(coords) > 0 else None
+                lat = coords[1] if len(coords) > 1 else None
+            else:
+                lat = geometry.get("y") if geometry else None
+                lon = geometry.get("x") if geometry else None
 
             try:
                 entry = {
@@ -54,6 +59,7 @@ class ArcGISLandingPointCollector(BaseCollector):
                     "unit": "",
                     "metadata": {
                         "objectid": props.get("OBJECTID"),
+                        "city_id": props.get("city_id"),
                         "cable_id": props.get("cable_id"),
                         "cable_name": props.get("cable_name"),
                         "facility": props.get("facility"),

backend/app/services/collectors/arcgis_relation.py

@@ -1,6 +1,10 @@
-from typing import Dict, Any, List
+import asyncio
 from datetime import datetime
+from typing import Any, Dict, List, Optional
 
+import httpx
+
+from app.core.data_sources import get_data_sources_config
 from app.services.collectors.base import BaseCollector
 
 
@@ -11,43 +15,133 @@ class ArcGISCableLandingRelationCollector(BaseCollector):
     frequency_hours = 168
     data_type = "cable_landing_relation"
 
-    base_url = "https://services.arcgis.com/6DIQcwlPy8knb6sg/arcgis/rest/services/SubmarineCables/FeatureServer/3/query"
+    @property
+    def base_url(self) -> str:
+        if self._resolved_url:
+            return self._resolved_url
+        config = get_data_sources_config()
+        return config.get_yaml_url("arcgis_cable_landing_relation")
+
+    def _layer_url(self, layer_id: int) -> str:
+        if "/FeatureServer/" not in self.base_url:
+            return self.base_url
+        prefix = self.base_url.split("/FeatureServer/")[0]
+        return f"{prefix}/FeatureServer/{layer_id}/query"
+
+    async def _fetch_layer_attributes(
+        self, client: httpx.AsyncClient, layer_id: int
+    ) -> List[Dict[str, Any]]:
+        response = await client.get(
+            self._layer_url(layer_id),
+            params={
+                "where": "1=1",
+                "outFields": "*",
+                "returnGeometry": "false",
+                "f": "json",
+            },
+        )
+        response.raise_for_status()
+        data = response.json()
+        return [feature.get("attributes", {}) for feature in data.get("features", [])]
+
+    async def _fetch_relation_features(self, client: httpx.AsyncClient) -> List[Dict[str, Any]]:
+        response = await client.get(
+            self.base_url,
+            params={
+                "where": "1=1",
+                "outFields": "*",
+                "returnGeometry": "true",
+                "f": "geojson",
+            },
+        )
+        response.raise_for_status()
+        data = response.json()
+        return data.get("features", [])
 
     async def fetch(self) -> List[Dict[str, Any]]:
-        import httpx
-
-        params = {"where": "1=1", "outFields": "*", "returnGeometry": "true", "f": "geojson"}
-
         async with httpx.AsyncClient(timeout=60.0) as client:
-            response = await client.get(self.base_url, params=params)
-            response.raise_for_status()
-            return self.parse_response(response.json())
+            relation_features, landing_rows, cable_rows = await asyncio.gather(
+                self._fetch_relation_features(client),
+                self._fetch_layer_attributes(client, 1),
+                self._fetch_layer_attributes(client, 2),
+            )
+        return self.parse_response(relation_features, landing_rows, cable_rows)
 
-    def parse_response(self, data: Dict[str, Any]) -> List[Dict[str, Any]]:
-        result = []
+    def _build_landing_lookup(self, landing_rows: List[Dict[str, Any]]) -> Dict[int, Dict[str, Any]]:
+        lookup: Dict[int, Dict[str, Any]] = {}
+        for row in landing_rows:
+            city_id = row.get("city_id")
+            if city_id is None:
+                continue
+            lookup[int(city_id)] = {
+                "landing_point_id": row.get("landing_point_id") or city_id,
+                "landing_point_name": row.get("Name") or row.get("name") or "",
+                "facility": row.get("facility") or "",
+                "status": row.get("status") or "",
+                "country": row.get("country") or "",
+            }
+        return lookup
 
-        features = data.get("features", [])
-        for feature in features:
+    def _build_cable_lookup(self, cable_rows: List[Dict[str, Any]]) -> Dict[int, Dict[str, Any]]:
+        lookup: Dict[int, Dict[str, Any]] = {}
+        for row in cable_rows:
+            cable_id = row.get("cable_id")
+            if cable_id is None:
+                continue
+            lookup[int(cable_id)] = {
+                "cable_name": row.get("Name") or "",
+                "status": row.get("status") or "active",
+            }
+        return lookup
+
+    def parse_response(
+        self,
+        relation_features: List[Dict[str, Any]],
+        landing_rows: List[Dict[str, Any]],
+        cable_rows: List[Dict[str, Any]],
+    ) -> List[Dict[str, Any]]:
+        result: List[Dict[str, Any]] = []
+        landing_lookup = self._build_landing_lookup(landing_rows)
+        cable_lookup = self._build_cable_lookup(cable_rows)
+
+        for feature in relation_features:
             props = feature.get("properties", {})
 
             try:
+                city_id = props.get("city_id")
+                cable_id = props.get("cable_id")
+                landing_info = landing_lookup.get(int(city_id), {}) if city_id is not None else {}
+                cable_info = cable_lookup.get(int(cable_id), {}) if cable_id is not None else {}
+
+                cable_name = cable_info.get("cable_name") or props.get("cable_name") or "Unknown"
+                landing_point_name = (
+                    landing_info.get("landing_point_name")
+                    or props.get("landing_point_name")
+                    or "Unknown"
+                )
+                facility = landing_info.get("facility") or props.get("facility") or "-"
+                status = cable_info.get("status") or landing_info.get("status") or props.get("status") or "-"
+                country = landing_info.get("country") or props.get("country") or ""
+                landing_point_id = landing_info.get("landing_point_id") or props.get("landing_point_id") or city_id
+
                 entry = {
                     "source_id": f"arcgis_relation_{props.get('OBJECTID', props.get('id', ''))}",
-                    "name": f"{props.get('cable_name', 'Unknown')} - {props.get('landing_point_name', 'Unknown')}",
-                    "country": props.get("country", ""),
-                    "city": props.get("landing_point_name", ""),
+                    "name": f"{cable_name} - {landing_point_name}",
+                    "country": country,
+                    "city": landing_point_name,
                     "latitude": str(props.get("latitude", "")) if props.get("latitude") else "",
                     "longitude": str(props.get("longitude", "")) if props.get("longitude") else "",
                     "value": "",
                     "unit": "",
                     "metadata": {
                         "objectid": props.get("OBJECTID"),
-                        "cable_id": props.get("cable_id"),
-                        "cable_name": props.get("cable_name"),
-                        "landing_point_id": props.get("landing_point_id"),
-                        "landing_point_name": props.get("landing_point_name"),
-                        "facility": props.get("facility"),
-                        "status": props.get("status"),
+                        "city_id": city_id,
+                        "cable_id": cable_id,
+                        "cable_name": cable_name,
+                        "landing_point_id": landing_point_id,
+                        "landing_point_name": landing_point_name,
+                        "facility": facility,
+                        "status": status,
                     },
                     "reference_date": datetime.utcnow().strftime("%Y-%m-%d"),
                 }

backend/app/services/collectors/base.py

@@ -4,10 +4,12 @@ from abc import ABC, abstractmethod
 from typing import Dict, List, Any, Optional
 from datetime import datetime
 import httpx
-from sqlalchemy import text
+from sqlalchemy import select, text
 from sqlalchemy.ext.asyncio import AsyncSession
 
+from app.core.collected_data_fields import build_dynamic_metadata, get_record_field
 from app.core.config import settings
+from app.core.countries import normalize_country
 
 
 class BaseCollector(ABC):
@@ -23,6 +25,13 @@ class BaseCollector(ABC):
         self._current_task = None
         self._db_session = None
         self._datasource_id = 1
+        self._resolved_url: Optional[str] = None
+
+    async def resolve_url(self, db: AsyncSession) -> None:
+        from app.core.data_sources import get_data_sources_config
+
+        config = get_data_sources_config()
+        self._resolved_url = await config.get_url(self.name, db)
 
     def update_progress(self, records_processed: int):
         """Update task progress - call this during data processing"""
@@ -32,6 +41,11 @@ class BaseCollector(ABC):
                 records_processed / self._current_task.total_records
             ) * 100
 
+    async def set_phase(self, phase: str):
+        if self._current_task and self._db_session:
+            self._current_task.phase = phase
+            await self._db_session.commit()
+
     @abstractmethod
     async def fetch(self) -> List[Dict[str, Any]]:
         """Fetch raw data from source"""
@@ -41,14 +55,87 @@ class BaseCollector(ABC):
         """Transform raw data to internal format (default: pass through)"""
         return raw_data
 
+    def _parse_reference_date(self, value: Any) -> Optional[datetime]:
+        if not value:
+            return None
+        if isinstance(value, datetime):
+            return value
+        if isinstance(value, str):
+            return datetime.fromisoformat(value.replace("Z", "+00:00"))
+        return None
+
+    def _build_comparable_payload(self, record: Any) -> Dict[str, Any]:
+        return {
+            "name": getattr(record, "name", None),
+            "title": getattr(record, "title", None),
+            "description": getattr(record, "description", None),
+            "country": get_record_field(record, "country"),
+            "city": get_record_field(record, "city"),
+            "latitude": get_record_field(record, "latitude"),
+            "longitude": get_record_field(record, "longitude"),
+            "value": get_record_field(record, "value"),
+            "unit": get_record_field(record, "unit"),
+            "metadata": getattr(record, "extra_data", None) or {},
+            "reference_date": (
+                getattr(record, "reference_date", None).isoformat()
+                if getattr(record, "reference_date", None)
+                else None
+            ),
+        }
+
+    async def _create_snapshot(
+        self,
+        db: AsyncSession,
+        task_id: int,
+        data: List[Dict[str, Any]],
+        started_at: datetime,
+    ) -> int:
+        from app.models.data_snapshot import DataSnapshot
+
+        reference_dates = [
+            parsed
+            for parsed in (self._parse_reference_date(item.get("reference_date")) for item in data)
+            if parsed is not None
+        ]
+        reference_date = max(reference_dates) if reference_dates else None
+
+        result = await db.execute(
+            select(DataSnapshot)
+            .where(DataSnapshot.source == self.name, DataSnapshot.is_current == True)
+            .order_by(DataSnapshot.completed_at.desc().nullslast(), DataSnapshot.id.desc())
+            .limit(1)
+        )
+        previous_snapshot = result.scalar_one_or_none()
+
+        snapshot = DataSnapshot(
+            datasource_id=getattr(self, "_datasource_id", 1),
+            task_id=task_id,
+            source=self.name,
+            snapshot_key=f"{self.name}:{task_id}",
+            reference_date=reference_date,
+            started_at=started_at,
+            status="running",
+            is_current=True,
+            parent_snapshot_id=previous_snapshot.id if previous_snapshot else None,
+            summary={},
+        )
+        db.add(snapshot)
+
+        if previous_snapshot:
+            previous_snapshot.is_current = False
+
+        await db.commit()
+        return snapshot.id
+
     async def run(self, db: AsyncSession) -> Dict[str, Any]:
         """Full pipeline: fetch -> transform -> save"""
         from app.services.collectors.registry import collector_registry
         from app.models.task import CollectionTask
-        from app.models.collected_data import CollectedData
+        from app.models.data_snapshot import DataSnapshot
 
         start_time = datetime.utcnow()
         datasource_id = getattr(self, "_datasource_id", 1)
+        snapshot_id: Optional[int] = None
 
         if not collector_registry.is_active(self.name):
             return {"status": "skipped", "reason": "Collector is disabled"}
@@ -56,6 +143,7 @@ class BaseCollector(ABC):
         task = CollectionTask(
             datasource_id=datasource_id,
             status="running",
+            phase="queued",
             started_at=start_time,
         )
         db.add(task)
@@ -65,16 +153,23 @@ class BaseCollector(ABC):
         self._current_task = task
         self._db_session = db
 
+        await self.resolve_url(db)
+
         try:
+            await self.set_phase("fetching")
             raw_data = await self.fetch()
             task.total_records = len(raw_data)
             await db.commit()
 
+            await self.set_phase("transforming")
             data = self.transform(raw_data)
+            snapshot_id = await self._create_snapshot(db, task_id, data, start_time)
 
-            records_count = await self._save_data(db, data)
+            await self.set_phase("saving")
+            records_count = await self._save_data(db, data, task_id=task_id, snapshot_id=snapshot_id)
 
             task.status = "success"
+            task.phase = "completed"
             task.records_processed = records_count
             task.progress = 100.0
             task.completed_at = datetime.utcnow()
@@ -87,10 +182,16 @@ class BaseCollector(ABC):
                 "execution_time_seconds": (datetime.utcnow() - start_time).total_seconds(),
             }
         except Exception as e:
-            # Log task failure
             task.status = "failed"
+            task.phase = "failed"
             task.error_message = str(e)
             task.completed_at = datetime.utcnow()
+            if snapshot_id is not None:
+                snapshot = await db.get(DataSnapshot, snapshot_id)
+                if snapshot:
+                    snapshot.status = "failed"
+                    snapshot.completed_at = datetime.utcnow()
+                    snapshot.summary = {"error": str(e)}
             await db.commit()
 
             return {
@@ -100,50 +201,163 @@ class BaseCollector(ABC):
                 "execution_time_seconds": (datetime.utcnow() - start_time).total_seconds(),
             }
 
-    async def _save_data(self, db: AsyncSession, data: List[Dict[str, Any]]) -> int:
+    async def _save_data(
+        self,
+        db: AsyncSession,
+        data: List[Dict[str, Any]],
+        task_id: Optional[int] = None,
+        snapshot_id: Optional[int] = None,
+    ) -> int:
         """Save transformed data to database"""
         from app.models.collected_data import CollectedData
+        from app.models.data_snapshot import DataSnapshot
 
         if not data:
+            if snapshot_id is not None:
+                snapshot = await db.get(DataSnapshot, snapshot_id)
+                if snapshot:
+                    snapshot.record_count = 0
+                    snapshot.summary = {"created": 0, "updated": 0, "unchanged": 0}
+                    snapshot.status = "success"
+                    snapshot.completed_at = datetime.utcnow()
+                    await db.commit()
             return 0
 
         collected_at = datetime.utcnow()
         records_added = 0
+        created_count = 0
+        updated_count = 0
+        unchanged_count = 0
+        seen_entity_keys: set[str] = set()
+        previous_current_keys: set[str] = set()
+
+        previous_current_result = await db.execute(
+            select(CollectedData.entity_key).where(
+                CollectedData.source == self.name,
+                CollectedData.is_current == True,
+            )
+        )
+        previous_current_keys = {row[0] for row in previous_current_result.fetchall() if row[0]}
 
         for i, item in enumerate(data):
+            print(
+                f"DEBUG: Saving item {i}: name={item.get('name')}, metadata={item.get('metadata', 'NOT FOUND')}"
+            )
+            raw_metadata = item.get("metadata", {})
+            extra_data = build_dynamic_metadata(
+                raw_metadata,
+                country=item.get("country"),
+                city=item.get("city"),
+                latitude=item.get("latitude"),
+                longitude=item.get("longitude"),
+                value=item.get("value"),
+                unit=item.get("unit"),
+            )
+            normalized_country = normalize_country(item.get("country"))
+            if normalized_country is not None:
+                extra_data["country"] = normalized_country
+
+            if item.get("country") and normalized_country != item.get("country"):
+                extra_data["raw_country"] = item.get("country")
+                if normalized_country is None:
+                    extra_data["country_validation"] = "invalid"
+
+            source_id = item.get("source_id") or item.get("id")
+            reference_date = (
+                self._parse_reference_date(item.get("reference_date"))
+            )
+            source_id_str = str(source_id) if source_id is not None else None
+            entity_key = f"{self.name}:{source_id_str}" if source_id_str else f"{self.name}:{i}"
+            previous_record = None
+
+            if entity_key and entity_key not in seen_entity_keys:
+                result = await db.execute(
+                    select(CollectedData)
+                    .where(
+                        CollectedData.source == self.name,
+                        CollectedData.entity_key == entity_key,
+                        CollectedData.is_current == True,
+                    )
+                    .order_by(CollectedData.collected_at.desc().nullslast(), CollectedData.id.desc())
+                )
+                previous_records = result.scalars().all()
+                if previous_records:
+                    previous_record = previous_records[0]
+                    for old_record in previous_records:
+                        old_record.is_current = False
+
             record = CollectedData(
+                snapshot_id=snapshot_id,
+                task_id=task_id,
                 source=self.name,
-                source_id=item.get("source_id") or item.get("id"),
+                source_id=source_id_str,
+                entity_key=entity_key,
                 data_type=self.data_type,
                 name=item.get("name"),
                 title=item.get("title"),
                 description=item.get("description"),
-                country=item.get("country"),
-                city=item.get("city"),
-                latitude=str(item.get("latitude", ""))
-                if item.get("latitude") is not None
-                else None,
-                longitude=str(item.get("longitude", ""))
-                if item.get("longitude") is not None
-                else None,
-                value=item.get("value"),
-                unit=item.get("unit"),
-                extra_data=item.get("metadata", {}),
+                extra_data=extra_data,
                 collected_at=collected_at,
-                reference_date=datetime.fromisoformat(
-                    item.get("reference_date").replace("Z", "+00:00")
-                )
-                if item.get("reference_date")
-                else None,
+                reference_date=reference_date,
                 is_valid=1,
+                is_current=True,
+                previous_record_id=previous_record.id if previous_record else None,
+                deleted_at=None,
             )
+
+            if previous_record is None:
+                record.change_type = "created"
+                record.change_summary = {}
+                created_count += 1
+            else:
+                previous_payload = self._build_comparable_payload(previous_record)
+                current_payload = self._build_comparable_payload(record)
+                if current_payload == previous_payload:
+                    record.change_type = "unchanged"
+                    record.change_summary = {}
+                    unchanged_count += 1
+                else:
+                    changed_fields = [
+                        key for key in current_payload.keys() if current_payload[key] != previous_payload.get(key)
+                    ]
+                    record.change_type = "updated"
+                    record.change_summary = {"changed_fields": changed_fields}
+                    updated_count += 1
+
             db.add(record)
+            seen_entity_keys.add(entity_key)
             records_added += 1
 
             if i % 100 == 0:
                 self.update_progress(i + 1)
                 await db.commit()
 
+        if snapshot_id is not None:
+            deleted_keys = previous_current_keys - seen_entity_keys
+            await db.execute(
+                text(
+                    """
+                    UPDATE collected_data
+                    SET is_current = FALSE
+                    WHERE source = :source
+                      AND snapshot_id IS DISTINCT FROM :snapshot_id
+                      AND COALESCE(is_current, TRUE) = TRUE
+                    """
+                ),
+                {"source": self.name, "snapshot_id": snapshot_id},
+            )
+            snapshot = await db.get(DataSnapshot, snapshot_id)
+            if snapshot:
+                snapshot.record_count = records_added
+                snapshot.status = "success"
+                snapshot.completed_at = datetime.utcnow()
+                snapshot.summary = {
+                    "created": created_count,
+                    "updated": updated_count,
+                    "unchanged": unchanged_count,
+                    "deleted": len(deleted_keys),
+                }
+
         await db.commit()
         self.update_progress(len(data))
         return records_added

backend/app/services/collectors/celestrak.py

@@ -0,0 +1,99 @@
+"""CelesTrak TLE Collector
+
+Collects satellite TLE (Two-Line Element) data from CelesTrak.org.
+Free, no authentication required.
+"""
+
+import json
+from typing import Dict, Any, List
+import httpx
+
+from app.services.collectors.base import BaseCollector
+
+
+class CelesTrakTLECollector(BaseCollector):
+    name = "celestrak_tle"
+    priority = "P2"
+    module = "L3"
+    frequency_hours = 24
+    data_type = "satellite_tle"
+
+    @property
+    def base_url(self) -> str:
+        return "https://celestrak.org/NORAD/elements/gp.php"
+
+    async def fetch(self) -> List[Dict[str, Any]]:
+        satellite_groups = [
+            "starlink",
+            "gps-ops",
+            "galileo",
+            "glonass",
+            "beidou",
+            "leo",
+            "geo",
+            "iridium-next",
+        ]
+
+        all_satellites = []
+
+        async with httpx.AsyncClient(timeout=120.0) as client:
+            for group in satellite_groups:
+                try:
+                    url = f"https://celestrak.org/NORAD/elements/gp.php?GROUP={group}&FORMAT=json"
+                    response = await client.get(url)
+
+                    if response.status_code == 200:
+                        data = response.json()
+                        if isinstance(data, list):
+                            all_satellites.extend(data)
+                            print(f"CelesTrak: Fetched {len(data)} satellites from group '{group}'")
+                except Exception as e:
+                    print(f"CelesTrak: Error fetching group '{group}': {e}")
+
+        if not all_satellites:
+            return self._get_sample_data()
+
+        print(f"CelesTrak: Total satellites fetched: {len(all_satellites)}")
+
+        # Return raw data - base.run() will call transform()
+        return all_satellites
+
+    def transform(self, raw_data: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
+        transformed = []
+        for item in raw_data:
+            transformed.append(
+                {
+                    "name": item.get("OBJECT_NAME", "Unknown"),
+                    "reference_date": item.get("EPOCH", ""),
+                    "metadata": {
+                        "norad_cat_id": item.get("NORAD_CAT_ID"),
+                        "international_designator": item.get("OBJECT_ID"),
+                        "epoch": item.get("EPOCH"),
+                        "mean_motion": item.get("MEAN_MOTION"),
+                        "eccentricity": item.get("ECCENTRICITY"),
+                        "inclination": item.get("INCLINATION"),
+                        "raan": item.get("RA_OF_ASC_NODE"),
+                        "arg_of_perigee": item.get("ARG_OF_PERICENTER"),
+                        "mean_anomaly": item.get("MEAN_ANOMALY"),
+                        "classification_type": item.get("CLASSIFICATION_TYPE"),
+                        "bstar": item.get("BSTAR"),
+                        "mean_motion_dot": item.get("MEAN_MOTION_DOT"),
+                        "mean_motion_ddot": item.get("MEAN_MOTION_DDOT"),
+                        "ephemeris_type": item.get("EPHEMERIS_TYPE"),
+                    },
+                }
+            )
+        return transformed
+
+    def _get_sample_data(self) -> List[Dict[str, Any]]:
+        return [
+            {
+                "name": "STARLINK-1000",
+                "norad_cat_id": 44720,
+                "international_designator": "2019-029AZ",
+                "epoch": "2026-03-13T00:00:00Z",
+                "mean_motion": 15.79234567,
+                "eccentricity": 0.0001234,
+                "inclination": 53.0,
+            },
+        ]

backend/app/services/collectors/cloudflare.py

@@ -15,6 +15,7 @@ from datetime import datetime
 import httpx
 from app.services.collectors.base import HTTPCollector
 
+
 # Cloudflare API token (optional - for higher rate limits)
 CLOUDFLARE_API_TOKEN = os.environ.get("CLOUDFLARE_API_TOKEN", "")
 

backend/app/services/collectors/epoch_ai.py

@@ -13,6 +13,7 @@ import httpx
 from app.services.collectors.base import BaseCollector
 
 
+
 class EpochAIGPUCollector(BaseCollector):
     name = "epoch_ai_gpu"
     priority = "P0"

backend/app/services/collectors/fao_landing.py

@@ -10,6 +10,7 @@ import httpx
 from app.services.collectors.base import BaseCollector
 
 
+
 class FAOLandingPointCollector(BaseCollector):
     name = "fao_landing_points"
     priority = "P1"

backend/app/services/collectors/huggingface.py

@@ -12,6 +12,7 @@ from datetime import datetime
 from app.services.collectors.base import HTTPCollector
 
 
+
 class HuggingFaceModelCollector(HTTPCollector):
     name = "huggingface_models"
     priority = "P1"

backend/app/services/collectors/peeringdb.py

@@ -18,6 +18,7 @@ from datetime import datetime
 import httpx
 from app.services.collectors.base import HTTPCollector
 
+
 # PeeringDB API key - read from environment variable
 PEERINGDB_API_KEY = os.environ.get("PEERINGDB_API_KEY", "")
 
@@ -75,7 +76,7 @@ class PeeringDBIXPCollector(HTTPCollector):
         print(f"Warning: PeeringDB collection failed after {max_retries} retries: {last_error}")
         return {}
 
-    async def collect(self) -> List[Dict[str, Any]]:
+    async def fetch(self) -> List[Dict[str, Any]]:
         """Collect IXP data from PeeringDB with rate limit handling"""
         response_data = await self.fetch_with_retry()
         if not response_data:
@@ -176,7 +177,7 @@ class PeeringDBNetworkCollector(HTTPCollector):
         print(f"Warning: PeeringDB collection failed after {max_retries} retries: {last_error}")
         return {}
 
-    async def collect(self) -> List[Dict[str, Any]]:
+    async def fetch(self) -> List[Dict[str, Any]]:
         """Collect Network data from PeeringDB with rate limit handling"""
         response_data = await self.fetch_with_retry()
         if not response_data:
@@ -279,7 +280,7 @@ class PeeringDBFacilityCollector(HTTPCollector):
         print(f"Warning: PeeringDB collection failed after {max_retries} retries: {last_error}")
         return {}
 
-    async def collect(self) -> List[Dict[str, Any]]:
+    async def fetch(self) -> List[Dict[str, Any]]:
         """Collect Facility data from PeeringDB with rate limit handling"""
         response_data = await self.fetch_with_retry()
         if not response_data:

backend/app/services/collectors/spacetrack.py

@@ -0,0 +1,222 @@
+"""Space-Track TLE Collector
+
+Collects satellite TLE (Two-Line Element) data from Space-Track.org.
+API documentation: https://www.space-track.org/documentation
+"""
+
+import json
+from typing import Dict, Any, List
+import httpx
+
+from app.services.collectors.base import BaseCollector
+from app.core.data_sources import get_data_sources_config
+
+
+class SpaceTrackTLECollector(BaseCollector):
+    name = "spacetrack_tle"
+    priority = "P2"
+    module = "L3"
+    frequency_hours = 24
+    data_type = "satellite_tle"
+
+    @property
+    def base_url(self) -> str:
+        config = get_data_sources_config()
+        if self._resolved_url:
+            return self._resolved_url
+        return config.get_yaml_url("spacetrack_tle")
+
+    async def fetch(self) -> List[Dict[str, Any]]:
+        from app.core.config import settings
+
+        username = settings.SPACETRACK_USERNAME
+        password = settings.SPACETRACK_PASSWORD
+
+        if not username or not password:
+            print("SPACETRACK: No credentials configured, using sample data")
+            return self._get_sample_data()
+
+        print(f"SPACETRACK: Attempting to fetch TLE data with username: {username}")
+
+        try:
+            async with httpx.AsyncClient(
+                timeout=120.0,
+                follow_redirects=True,
+                headers={
+                    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
+                    "Accept": "application/json, text/html, */*",
+                    "Accept-Language": "en-US,en;q=0.9",
+                    "Referer": "https://www.space-track.org/",
+                },
+            ) as client:
+                await client.get("https://www.space-track.org/")
+
+                login_response = await client.post(
+                    "https://www.space-track.org/ajaxauth/login",
+                    data={
+                        "identity": username,
+                        "password": password,
+                    },
+                )
+                print(f"SPACETRACK: Login response status: {login_response.status_code}")
+                print(f"SPACETRACK: Login response URL: {login_response.url}")
+
+                if login_response.status_code == 403:
+                    print("SPACETRACK: Trying alternate login method...")
+
+                    async with httpx.AsyncClient(
+                        timeout=120.0,
+                        follow_redirects=True,
+                    ) as alt_client:
+                        await alt_client.get("https://www.space-track.org/")
+
+                        form_data = {
+                            "username": username,
+                            "password": password,
+                            "query": "class/gp/NORAD_CAT_ID/25544/format/json",
+                        }
+                        alt_login = await alt_client.post(
+                            "https://www.space-track.org/ajaxauth/login",
+                            data={
+                                "identity": username,
+                                "password": password,
+                            },
+                        )
+                        print(f"SPACETRACK: Alt login status: {alt_login.status_code}")
+
+                        if alt_login.status_code == 200:
+                            tle_response = await alt_client.get(
+                                "https://www.space-track.org/basicspacedata/query/class/gp/NORAD_CAT_ID/25544/format/json"
+                            )
+                            if tle_response.status_code == 200:
+                                data = tle_response.json()
+                                print(f"SPACETRACK: Received {len(data)} records via alt method")
+                                return data
+
+                if login_response.status_code != 200:
+                    print(f"SPACETRACK: Login failed, using sample data")
+                    return self._get_sample_data()
+
+                tle_response = await client.get(
+                    "https://www.space-track.org/basicspacedata/query/class/gp/NORAD_CAT_ID/25544/format/json"
+                )
+                print(f"SPACETRACK: TLE query status: {tle_response.status_code}")
+
+                if tle_response.status_code != 200:
+                    print(f"SPACETRACK: Query failed, using sample data")
+                    return self._get_sample_data()
+
+                data = tle_response.json()
+                print(f"SPACETRACK: Received {len(data)} records")
+                return data
+        except Exception as e:
+            print(f"SPACETRACK: Error - {e}, using sample data")
+            return self._get_sample_data()
+
+        print(f"SPACETRACK: Attempting to fetch TLE data with username: {username}")
+
+        try:
+            async with httpx.AsyncClient(
+                timeout=120.0,
+                follow_redirects=True,
+                headers={
+                    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
+                    "Accept": "application/json, text/html, */*",
+                    "Accept-Language": "en-US,en;q=0.9",
+                },
+            ) as client:
+                # First, visit the main page to get any cookies
+                await client.get("https://www.space-track.org/")
+
+                # Login to get session cookie
+                login_response = await client.post(
+                    "https://www.space-track.org/ajaxauth/login",
+                    data={
+                        "identity": username,
+                        "password": password,
+                    },
+                )
+                print(f"SPACETRACK: Login response status: {login_response.status_code}")
+                print(f"SPACETRACK: Login response URL: {login_response.url}")
+                print(f"SPACETRACK: Login response body: {login_response.text[:500]}")
+
+                if login_response.status_code != 200:
+                    print(f"SPACETRACK: Login failed, using sample data")
+                    return self._get_sample_data()
+
+                # Query for TLE data (get first 1000 satellites)
+                tle_response = await client.get(
+                    "https://www.space-track.org/basicspacedata/query"
+                    "/class/gp"
+                    "/orderby/EPOCH%20desc"
+                    "/limit/1000"
+                    "/format/json"
+                )
+                print(f"SPACETRACK: TLE query status: {tle_response.status_code}")
+
+                if tle_response.status_code != 200:
+                    print(f"SPACETRACK: Query failed, using sample data")
+                    return self._get_sample_data()
+
+                data = tle_response.json()
+                print(f"SPACETRACK: Received {len(data)} records")
+                return data
+        except Exception as e:
+            print(f"SPACETRACK: Error - {e}, using sample data")
+            return self._get_sample_data()
+
+    def transform(self, raw_data: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
+        """Transform TLE data to internal format"""
+        transformed = []
+        for item in raw_data:
+            transformed.append(
+                {
+                    "name": item.get("OBJECT_NAME", "Unknown"),
+                    "norad_cat_id": item.get("NORAD_CAT_ID"),
+                    "international_designator": item.get("INTL_DESIGNATOR"),
+                    "epoch": item.get("EPOCH"),
+                    "mean_motion": item.get("MEAN_MOTION"),
+                    "eccentricity": item.get("ECCENTRICITY"),
+                    "inclination": item.get("INCLINATION"),
+                    "raan": item.get("RAAN"),
+                    "arg_of_perigee": item.get("ARG_OF_PERIGEE"),
+                    "mean_anomaly": item.get("MEAN_ANOMALY"),
+                    "ephemeris_type": item.get("EPHEMERIS_TYPE"),
+                    "classification_type": item.get("CLASSIFICATION_TYPE"),
+                    "element_set_no": item.get("ELEMENT_SET_NO"),
+                    "rev_at_epoch": item.get("REV_AT_EPOCH"),
+                    "bstar": item.get("BSTAR"),
+                    "mean_motion_dot": item.get("MEAN_MOTION_DOT"),
+                    "mean_motion_ddot": item.get("MEAN_MOTION_DDOT"),
+                }
+            )
+        return transformed
+
+    def _get_sample_data(self) -> List[Dict[str, Any]]:
+        """Return sample TLE data for testing"""
+        return [
+            {
+                "name": "ISS (ZARYA)",
+                "norad_cat_id": 25544,
+                "international_designator": "1998-067A",
+                "epoch": "2026-03-13T00:00:00Z",
+                "mean_motion": 15.49872723,
+                "eccentricity": 0.0006292,
+                "inclination": 51.6400,
+                "raan": 315.0000,
+                "arg_of_perigee": 100.0000,
+                "mean_anomaly": 260.0000,
+            },
+            {
+                "name": "STARLINK-1000",
+                "norad_cat_id": 44720,
+                "international_designator": "2019-029AZ",
+                "epoch": "2026-03-13T00:00:00Z",
+                "mean_motion": 15.79234567,
+                "eccentricity": 0.0001234,
+                "inclination": 53.0000,
+                "raan": 120.0000,
+                "arg_of_perigee": 90.0000,
+                "mean_anomaly": 270.0000,
+            },
+        ]

backend/app/services/collectors/telegeography.py

@@ -14,6 +14,7 @@ import httpx
 from app.services.collectors.base import BaseCollector
 
 
+
 class TeleGeographyCableCollector(BaseCollector):
     name = "telegeography_cables"
     priority = "P1"

backend/app/services/collectors/top500.py

@@ -4,9 +4,9 @@ Collects data from TOP500 supercomputer rankings.
 https://top500.org/lists/top500/
 """
 
+import asyncio
 import re
 from typing import Dict, Any, List
-from datetime import datetime
 from bs4 import BeautifulSoup
 import httpx
 
@@ -21,14 +21,108 @@ class TOP500Collector(BaseCollector):
     data_type = "supercomputer"
 
     async def fetch(self) -> List[Dict[str, Any]]:
-        """Fetch TOP500 data from website (scraping)"""
-        # Get the latest list page
+        """Fetch TOP500 list data and enrich each row with detail-page metadata."""
         url = "https://top500.org/lists/top500/list/2025/11/"
 
-        async with httpx.AsyncClient(timeout=60.0) as client:
+        async with httpx.AsyncClient(timeout=60.0, follow_redirects=True) as client:
             response = await client.get(url)
             response.raise_for_status()
-            return self.parse_response(response.text)
+            entries = self.parse_response(response.text)
+
+            semaphore = asyncio.Semaphore(8)
+
+            async def enrich(entry: Dict[str, Any]) -> Dict[str, Any]:
+                detail_url = entry.pop("_detail_url", "")
+                if not detail_url:
+                    return entry
+
+                async with semaphore:
+                    try:
+                        detail_response = await client.get(detail_url)
+                        detail_response.raise_for_status()
+                        entry["metadata"].update(self.parse_detail_response(detail_response.text))
+                    except Exception:
+                        entry["metadata"]["detail_fetch_failed"] = True
+                return entry
+
+            return await asyncio.gather(*(enrich(entry) for entry in entries))
+
+    def _extract_system_fields(self, system_cell) -> Dict[str, str]:
+        link = system_cell.find("a")
+        system_name = link.get_text(" ", strip=True) if link else system_cell.get_text(" ", strip=True)
+        detail_url = ""
+        if link and link.get("href"):
+            detail_url = f"https://top500.org{link.get('href')}"
+
+        manufacturer = ""
+        if link and link.next_sibling:
+            manufacturer = str(link.next_sibling).strip(" ,\n\t")
+
+        cell_text = system_cell.get_text("\n", strip=True)
+        lines = [line.strip(" ,") for line in cell_text.splitlines() if line.strip()]
+
+        site = ""
+        country = ""
+        if lines:
+            system_name = lines[0]
+        if len(lines) >= 3:
+            site = lines[-2]
+            country = lines[-1]
+        elif len(lines) == 2:
+            country = lines[-1]
+
+        if not manufacturer and len(lines) >= 2:
+            manufacturer = lines[1]
+
+        return {
+            "name": system_name,
+            "manufacturer": manufacturer,
+            "site": site,
+            "country": country,
+            "detail_url": detail_url,
+        }
+
+    def parse_detail_response(self, html: str) -> Dict[str, Any]:
+        soup = BeautifulSoup(html, "html.parser")
+        detail_table = soup.find("table", {"class": "table table-condensed"})
+        if not detail_table:
+            return {}
+
+        detail_map: Dict[str, Any] = {}
+        label_aliases = {
+            "Site": "site",
+            "Manufacturer": "manufacturer",
+            "Cores": "cores",
+            "Processor": "processor",
+            "Interconnect": "interconnect",
+            "Installation Year": "installation_year",
+            "Linpack Performance (Rmax)": "rmax",
+            "Theoretical Peak (Rpeak)": "rpeak",
+            "Nmax": "nmax",
+            "HPCG": "hpcg",
+            "Power": "power",
+            "Power Measurement Level": "power_measurement_level",
+            "Operating System": "operating_system",
+            "Compiler": "compiler",
+            "Math Library": "math_library",
+            "MPI": "mpi",
+        }
+
+        for row in detail_table.find_all("tr"):
+            header = row.find("th")
+            value_cell = row.find("td")
+            if not header or not value_cell:
+                continue
+
+            label = header.get_text(" ", strip=True).rstrip(":")
+            key = label_aliases.get(label)
+            if not key:
+                continue
+
+            value = value_cell.get_text(" ", strip=True)
+            detail_map[key] = value
+
+        return detail_map
 
     def parse_response(self, html: str) -> List[Dict[str, Any]]:
         """Parse TOP500 HTML response"""
@@ -36,27 +130,26 @@ class TOP500Collector(BaseCollector):
         soup = BeautifulSoup(html, "html.parser")
 
         # Find the table with TOP500 data
-        table = soup.find("table", {"class": "top500-table"})
-        if not table:
-            # Try alternative table selector
-            table = soup.find("table", {"id": "top500"})
+        table = None
+        for candidate in soup.find_all("table"):
+            header_cells = [
+                cell.get_text(" ", strip=True) for cell in candidate.select("thead th")
+            ]
+            normalized_headers = [header.lower() for header in header_cells]
+            if (
+                "rank" in normalized_headers
+                and "system" in normalized_headers
+                and any("cores" in header for header in normalized_headers)
+                and any("rmax" in header for header in normalized_headers)
+            ):
+                table = candidate
+                break
 
         if not table:
-            # Try to find any table with rank data
-            tables = soup.find_all("table")
-            for t in tables:
-                if t.find(string=re.compile(r"Rank.*System.*Cores.*Rmax", re.I)):
-                    table = t
-                    break
-
-        if not table:
-            # Fallback: try to extract data from any table
-            tables = soup.find_all("table")
-            if tables:
-                table = tables[0]
+            table = soup.find("table", {"class": "top500-table"}) or soup.find("table", {"id": "top500"})
 
         if table:
-            rows = table.find_all("tr")
+            rows = table.select("tr")
             for row in rows[1:]:  # Skip header row
                 cells = row.find_all(["td", "th"])
                 if len(cells) >= 6:
@@ -68,43 +161,26 @@ class TOP500Collector(BaseCollector):
 
                         rank = int(rank_text)
 
-                        # System name (may contain link)
                         system_cell = cells[1]
-                        system_name = system_cell.get_text(strip=True)
-                        # Try to get full name from link title or data attribute
-                        link = system_cell.find("a")
-                        if link and link.get("title"):
-                            system_name = link.get("title")
+                        system_fields = self._extract_system_fields(system_cell)
+                        system_name = system_fields["name"]
+                        manufacturer = system_fields["manufacturer"]
+                        site = system_fields["site"]
+                        country = system_fields["country"]
+                        detail_url = system_fields["detail_url"]
 
-                        # Country
-                        country_cell = cells[2]
-                        country = country_cell.get_text(strip=True)
-                        # Try to get country from data attribute or image alt
-                        img = country_cell.find("img")
-                        if img and img.get("alt"):
-                            country = img.get("alt")
-
-                        # Extract location (city)
                         city = ""
-                        location_text = country_cell.get_text(strip=True)
-                        if "(" in location_text and ")" in location_text:
-                            city = location_text.split("(")[0].strip()
+                        cores = cells[2].get_text(strip=True).replace(",", "")
 
-                        # Cores
-                        cores = cells[3].get_text(strip=True).replace(",", "")
-
-                        # Rmax
-                        rmax_text = cells[4].get_text(strip=True)
+                        rmax_text = cells[3].get_text(strip=True)
                         rmax = self._parse_performance(rmax_text)
 
-                        # Rpeak
-                        rpeak_text = cells[5].get_text(strip=True)
+                        rpeak_text = cells[4].get_text(strip=True)
                         rpeak = self._parse_performance(rpeak_text)
 
-                        # Power (optional)
                         power = ""
-                        if len(cells) >= 7:
-                            power = cells[6].get_text(strip=True)
+                        if len(cells) >= 6:
+                            power = cells[5].get_text(strip=True).replace(",", "")
 
                         entry = {
                             "source_id": f"top500_{rank}",
@@ -117,10 +193,14 @@ class TOP500Collector(BaseCollector):
                             "unit": "PFlop/s",
                             "metadata": {
                                 "rank": rank,
-                                "r_peak": rpeak,
-                                "power": power,
                                 "cores": cores,
+                                "rmax": rmax_text,
+                                "rpeak": rpeak_text,
+                                "power": power,
+                                "manufacturer": manufacturer,
+                                "site": site,
                             },
+                            "_detail_url": detail_url,
                             "reference_date": "2025-11-01",
                         }
                         data.append(entry)
@@ -184,10 +264,15 @@ class TOP500Collector(BaseCollector):
                 "unit": "PFlop/s",
                 "metadata": {
                     "rank": 1,
-                    "r_peak": 2746.38,
-                    "power": 29581,
-                    "cores": 11039616,
+                    "cores": "11039616",
+                    "rmax": "1742.00",
+                    "rpeak": "2746.38",
+                    "power": "29581",
                     "manufacturer": "HPE",
+                    "site": "DOE/NNSA/LLNL",
+                    "processor": "AMD 4th Gen EPYC 24C 1.8GHz",
+                    "interconnect": "Slingshot-11",
+                    "installation_year": "2025",
                 },
                 "reference_date": "2025-11-01",
             },
@@ -202,10 +287,12 @@ class TOP500Collector(BaseCollector):
                 "unit": "PFlop/s",
                 "metadata": {
                     "rank": 2,
-                    "r_peak": 2055.72,
-                    "power": 24607,
-                    "cores": 9066176,
+                    "cores": "9066176",
+                    "rmax": "1353.00",
+                    "rpeak": "2055.72",
+                    "power": "24607",
                     "manufacturer": "HPE",
+                    "site": "DOE/SC/Oak Ridge National Laboratory",
                 },
                 "reference_date": "2025-11-01",
             },
@@ -220,9 +307,10 @@ class TOP500Collector(BaseCollector):
                 "unit": "PFlop/s",
                 "metadata": {
                     "rank": 3,
-                    "r_peak": 1980.01,
-                    "power": 38698,
-                    "cores": 9264128,
+                    "cores": "9264128",
+                    "rmax": "1012.00",
+                    "rpeak": "1980.01",
+                    "power": "38698",
                     "manufacturer": "Intel",
                 },
                 "reference_date": "2025-11-01",

backend/app/services/scheduler.py

@@ -1,15 +1,17 @@
-"""Task Scheduler for running collection jobs"""
+"""Task Scheduler for running collection jobs."""
 
 import asyncio
 import logging
-from datetime import datetime
-from typing import Dict, Any
+from datetime import datetime, timedelta
+from typing import Any, Dict, Optional
 
 from apscheduler.schedulers.asyncio import AsyncIOScheduler
 from apscheduler.triggers.interval import IntervalTrigger
-from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
 
 from app.db.session import async_session_factory
+from app.models.datasource import DataSource
+from app.models.task import CollectionTask
 from app.services.collectors.registry import collector_registry
 
 logger = logging.getLogger(__name__)
@@ -17,73 +19,148 @@ logger = logging.getLogger(__name__)
 scheduler = AsyncIOScheduler()
 
 
-COLLECTOR_TO_ID = {
-    "top500": 1,
-    "epoch_ai_gpu": 2,
-    "huggingface_models": 3,
-    "huggingface_datasets": 4,
-    "huggingface_spaces": 5,
-    "peeringdb_ixp": 6,
-    "peeringdb_network": 7,
-    "peeringdb_facility": 8,
-    "telegeography_cables": 9,
-    "telegeography_landing": 10,
-    "telegeography_systems": 11,
-    "arcgis_cables": 15,
-    "fao_landing_points": 16,
-}
+async def _update_next_run_at(datasource: DataSource, session) -> None:
+    job = scheduler.get_job(datasource.source)
+    datasource.next_run_at = job.next_run_time if job else None
+    await session.commit()
+
+
+async def _apply_datasource_schedule(datasource: DataSource, session) -> None:
+    collector = collector_registry.get(datasource.source)
+    if not collector:
+        logger.warning("Collector not found for datasource %s", datasource.source)
+        return
+
+    collector_registry.set_active(datasource.source, datasource.is_active)
+
+    existing_job = scheduler.get_job(datasource.source)
+    if existing_job:
+        scheduler.remove_job(datasource.source)
+
+    if datasource.is_active:
+        scheduler.add_job(
+            run_collector_task,
+            trigger=IntervalTrigger(minutes=max(1, datasource.frequency_minutes)),
+            id=datasource.source,
+            name=datasource.name,
+            replace_existing=True,
+            kwargs={"collector_name": datasource.source},
+        )
+        logger.info(
+            "Scheduled collector: %s (every %sm)",
+            datasource.source,
+            datasource.frequency_minutes,
+        )
+    else:
+        logger.info("Collector disabled: %s", datasource.source)
+
+    await _update_next_run_at(datasource, session)
 
 
 async def run_collector_task(collector_name: str):
-    """Run a single collector task"""
+    """Run a single collector task."""
     collector = collector_registry.get(collector_name)
     if not collector:
-        logger.error(f"Collector not found: {collector_name}")
+        logger.error("Collector not found: %s", collector_name)
         return
 
-    # Get the correct datasource_id
-    datasource_id = COLLECTOR_TO_ID.get(collector_name, 1)
+    async with async_session_factory() as db:
+        result = await db.execute(select(DataSource).where(DataSource.source == collector_name))
+        datasource = result.scalar_one_or_none()
+        if not datasource:
+            logger.error("Datasource not found for collector: %s", collector_name)
+            return
+
+        if not datasource.is_active:
+            logger.info("Skipping disabled collector: %s", collector_name)
+            return
+
+        try:
+            collector._datasource_id = datasource.id
+            logger.info("Running collector: %s (datasource_id=%s)", collector_name, datasource.id)
+            task_result = await collector.run(db)
+            datasource.last_run_at = datetime.utcnow()
+            datasource.last_status = task_result.get("status")
+            await _update_next_run_at(datasource, db)
+            logger.info("Collector %s completed: %s", collector_name, task_result)
+        except Exception as exc:
+            datasource.last_run_at = datetime.utcnow()
+            datasource.last_status = "failed"
+            await db.commit()
+            logger.exception("Collector %s failed: %s", collector_name, exc)
+
+
+async def cleanup_stale_running_tasks(max_age_hours: int = 2) -> int:
+    """Mark stale running tasks as failed after restarts or collector hangs."""
+    cutoff = datetime.utcnow() - timedelta(hours=max_age_hours)
 
     async with async_session_factory() as db:
-        try:
-            # Set the datasource_id on the collector instance
-            collector._datasource_id = datasource_id
-
-            logger.info(f"Running collector: {collector_name} (datasource_id={datasource_id})")
-            result = await collector.run(db)
-            logger.info(f"Collector {collector_name} completed: {result}")
-        except Exception as e:
-            logger.error(f"Collector {collector_name} failed: {e}")
-
-
-def start_scheduler():
-    """Start the scheduler with all registered collectors"""
-    collectors = collector_registry.all()
-
-    for name, collector in collectors.items():
-        if collector_registry.is_active(name):
-            scheduler.add_job(
-                run_collector_task,
-                trigger=IntervalTrigger(hours=collector.frequency_hours),
-                id=name,
-                name=name,
-                replace_existing=True,
-                kwargs={"collector_name": name},
+        result = await db.execute(
+            select(CollectionTask).where(
+                CollectionTask.status == "running",
+                CollectionTask.started_at.is_not(None),
+                CollectionTask.started_at < cutoff,
             )
-            logger.info(f"Scheduled collector: {name} (every {collector.frequency_hours}h)")
+        )
+        stale_tasks = result.scalars().all()
 
-    scheduler.start()
-    logger.info("Scheduler started")
+        for task in stale_tasks:
+            task.status = "failed"
+            task.phase = "failed"
+            task.completed_at = datetime.utcnow()
+            existing_error = (task.error_message or "").strip()
+            cleanup_error = "Marked failed automatically after stale running task cleanup"
+            task.error_message = f"{existing_error}\n{cleanup_error}".strip() if existing_error else cleanup_error
+
+        if stale_tasks:
+            await db.commit()
+            logger.warning("Cleaned up %s stale running collection task(s)", len(stale_tasks))
+
+        return len(stale_tasks)
 
 
-def stop_scheduler():
-    """Stop the scheduler"""
-    scheduler.shutdown()
-    logger.info("Scheduler stopped")
+def start_scheduler() -> None:
+    """Start the scheduler."""
+    if not scheduler.running:
+        scheduler.start()
+        logger.info("Scheduler started")
+
+
+def stop_scheduler() -> None:
+    """Stop the scheduler."""
+    if scheduler.running:
+        scheduler.shutdown(wait=False)
+        logger.info("Scheduler stopped")
+
+
+async def sync_scheduler_with_datasources() -> None:
+    """Synchronize scheduler jobs with datasource table."""
+    async with async_session_factory() as db:
+        result = await db.execute(select(DataSource).order_by(DataSource.id))
+        datasources = result.scalars().all()
+
+        configured_sources = {datasource.source for datasource in datasources}
+        for job in list(scheduler.get_jobs()):
+            if job.id not in configured_sources:
+                scheduler.remove_job(job.id)
+
+        for datasource in datasources:
+            await _apply_datasource_schedule(datasource, db)
+
+
+async def sync_datasource_job(datasource_id: int) -> bool:
+    """Synchronize a single datasource job after settings changes."""
+    async with async_session_factory() as db:
+        datasource = await db.get(DataSource, datasource_id)
+        if not datasource:
+            return False
+
+        await _apply_datasource_schedule(datasource, db)
+        return True
 
 
 def get_scheduler_jobs() -> list[Dict[str, Any]]:
-    """Get all scheduled jobs"""
+    """Get all scheduled jobs."""
     jobs = []
     for job in scheduler.get_jobs():
         jobs.append(
@@ -97,52 +174,30 @@ def get_scheduler_jobs() -> list[Dict[str, Any]]:
     return jobs
 
 
-def add_job(collector_name: str, hours: int = 4):
-    """Add a new scheduled job"""
-    collector = collector_registry.get(collector_name)
-    if not collector:
-        raise ValueError(f"Collector not found: {collector_name}")
+async def get_latest_task_id_for_datasource(datasource_id: int) -> Optional[int]:
+    from app.models.task import CollectionTask
 
-    scheduler.add_job(
-        run_collector_task,
-        trigger=IntervalTrigger(hours=hours),
-        id=collector_name,
-        name=collector_name,
-        replace_existing=True,
-        kwargs={"collector_name": collector_name},
-    )
-    logger.info(f"Added scheduled job: {collector_name} (every {hours}h)")
-
-
-def remove_job(collector_name: str):
-    """Remove a scheduled job"""
-    scheduler.remove_job(collector_name)
-    logger.info(f"Removed scheduled job: {collector_name}")
-
-
-def pause_job(collector_name: str):
-    """Pause a scheduled job"""
-    scheduler.pause_job(collector_name)
-    logger.info(f"Paused job: {collector_name}")
-
-
-def resume_job(collector_name: str):
-    """Resume a scheduled job"""
-    scheduler.resume_job(collector_name)
-    logger.info(f"Resumed job: {collector_name}")
+    async with async_session_factory() as db:
+        result = await db.execute(
+            select(CollectionTask.id)
+            .where(CollectionTask.datasource_id == datasource_id)
+            .order_by(CollectionTask.created_at.desc(), CollectionTask.id.desc())
+            .limit(1)
+        )
+        return result.scalar_one_or_none()
 
 
 def run_collector_now(collector_name: str) -> bool:
-    """Run a collector immediately (not scheduled)"""
+    """Run a collector immediately (not scheduled)."""
     collector = collector_registry.get(collector_name)
     if not collector:
-        logger.error(f"Collector not found: {collector_name}")
+        logger.error("Collector not found: %s", collector_name)
         return False
 
     try:
         asyncio.create_task(run_collector_task(collector_name))
-        logger.info(f"Triggered collector: {collector_name}")
+        logger.info("Triggered collector: %s", collector_name)
         return True
-    except Exception as e:
-        logger.error(f"Failed to trigger collector {collector_name}: {e}")
-        return False
+    except Exception as exc:
+        logger.error("Failed to trigger collector %s: %s", collector_name, exc)
+        return False

backend/requirements.txt

@@ -16,3 +16,4 @@ email-validator
 apscheduler>=3.10.4
 pytest>=7.4.0
 pytest-asyncio>=0.23.0
+networkx>=3.0

docker-compose.yml

@@ -31,45 +31,6 @@ services:
       timeout: 5s
       retries: 5
 
-  backend:
-    build:
-      context: ./backend
-      dockerfile: Dockerfile
-    container_name: planet_backend
-    ports:
-      - "8000:8000"
-    environment:
-      - DATABASE_URL=postgresql+asyncpg://postgres:postgres@postgres:5432/planet_db
-      - REDIS_URL=redis://redis:6379/0
-      - SECRET_KEY=your-secret-key-change-in-production
-      - CORS_ORIGINS=["http://localhost:3000","http://0.0.0.0:3000","http://frontend:3000"]
-    depends_on:
-      postgres:
-        condition: service_healthy
-      redis:
-        condition: service_healthy
-    healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:8000/health"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
-
-  frontend:
-    build:
-      context: ./frontend
-      dockerfile: Dockerfile
-    container_name: planet_frontend
-    ports:
-      - "3000:3000"
-    environment:
-      - VITE_API_URL=http://backend:8000/api/v1
-      - VITE_WS_URL=ws://backend:8000/ws
-    depends_on:
-      backend:
-        condition: service_healthy
-    stdin_open: true
-    tty: true
-
 volumes:
   postgres_data:
   redis_data:

docs/collected-data-column-removal-plan.md

@@ -0,0 +1,207 @@
+# collected_data 强耦合列拆除计划
+
+## 背景
+
+当前 `collected_data` 同时承担了两类职责：
+
+1. 通用采集事实表
+2. 少数数据源的宽表字段承载
+
+典型强耦合列包括：
+
+- `country`
+- `city`
+- `latitude`
+- `longitude`
+- `value`
+- `unit`
+
+以及 API 层临时平铺出来的：
+
+- `cores`
+- `rmax`
+- `rpeak`
+- `power`
+
+这些字段并不适合作为统一事实表的长期 schema。  
+推荐方向是：
+
+- 表内保留通用稳定字段
+- 业务差异字段全部归入 `metadata`
+- API 和前端动态读取 `metadata`
+
+## 拆除目标
+
+最终希望 `collected_data` 只保留：
+
+- `id`
+- `snapshot_id`
+- `task_id`
+- `source`
+- `source_id`
+- `entity_key`
+- `data_type`
+- `name`
+- `title`
+- `description`
+- `metadata`
+- `collected_at`
+- `reference_date`
+- `is_valid`
+- `is_current`
+- `previous_record_id`
+- `change_type`
+- `change_summary`
+- `deleted_at`
+
+## 计划阶段
+
+### Phase 1：读取层去依赖
+
+目标：
+
+- API / 可视化 / 前端不再优先依赖宽列表字段
+- 所有动态字段优先从 `metadata` 取
+
+当前已完成：
+
+- 新写入数据时，将 `country/city/latitude/longitude/value/unit` 自动镜像到 `metadata`
+- `/api/v1/collected` 优先从 `metadata` 取动态字段
+- `visualization` 接口优先从 `metadata` 取动态字段
+- 国家筛选已改成只走 `metadata->>'country'`
+- `CollectedData.to_dict()` 已切到 metadata-first
+- 变更比较逻辑已切到 metadata-first
+- 已新增历史回填脚本：
+  [scripts/backfill_collected_data_metadata.py](/home/ray/dev/linkong/planet/scripts/backfill_collected_data_metadata.py)
+- 已新增删列脚本：
+  [scripts/drop_collected_data_legacy_columns.py](/home/ray/dev/linkong/planet/scripts/drop_collected_data_legacy_columns.py)
+
+涉及文件：
+
+- [backend/app/core/collected_data_fields.py](/home/ray/dev/linkong/planet/backend/app/core/collected_data_fields.py)
+- [backend/app/services/collectors/base.py](/home/ray/dev/linkong/planet/backend/app/services/collectors/base.py)
+- [backend/app/api/v1/collected_data.py](/home/ray/dev/linkong/planet/backend/app/api/v1/collected_data.py)
+- [backend/app/api/v1/visualization.py](/home/ray/dev/linkong/planet/backend/app/api/v1/visualization.py)
+
+### Phase 2：写入层去依赖
+
+目标：
+
+- 采集器内部不再把这些字段当作数据库一级列来理解
+- 统一只写：
+  - 通用主字段
+  - `metadata`
+
+建议动作：
+
+1. Collector 内部仍可使用 `country/city/value` 这种临时字段作为采集过程变量
+2. 进入 `BaseCollector._save_data()` 后统一归档到 `metadata`
+3. `CollectedData` 模型中的强耦合列已从 ORM 移除，写入统一归档到 `metadata`
+
+### Phase 3：数据库删列
+
+目标：
+
+- 从 `collected_data` 真正移除以下列：
+  - `country`
+  - `city`
+  - `latitude`
+  - `longitude`
+  - `value`
+  - `unit`
+
+注意：
+
+- `cores / rmax / rpeak / power` 当前本来就在 `metadata` 里，不是表列
+- 这四个主要是 API 平铺字段，不需要数据库删列
+
+## 当前阻塞点
+
+在正式删列前，还需要确认这些地方已经完全不再直接依赖数据库列：
+
+### 1. `CollectedData.to_dict()`
+
+文件：
+
+- [backend/app/models/collected_data.py](/home/ray/dev/linkong/planet/backend/app/models/collected_data.py)
+
+状态：
+
+- 已完成
+
+### 2. 差异计算逻辑
+
+文件：
+
+- [backend/app/services/collectors/base.py](/home/ray/dev/linkong/planet/backend/app/services/collectors/base.py)
+
+状态：
+
+- 已完成
+- 当前已改成比较归一化后的 metadata-first payload
+
+### 3. 历史数据回填
+
+问题：
+
+- 老数据可能只有列值，没有对应 `metadata`
+
+当前方案：
+
+- 在删列前执行一次回填脚本：
+  - [scripts/backfill_collected_data_metadata.py](/home/ray/dev/linkong/planet/scripts/backfill_collected_data_metadata.py)
+
+### 4. 导出格式兼容
+
+文件：
+
+- [backend/app/api/v1/collected_data.py](/home/ray/dev/linkong/planet/backend/app/api/v1/collected_data.py)
+
+现状：
+
+- CSV/JSON 导出已基本切成 metadata-first
+
+建议：
+
+- 删列前再回归检查一次导出字段是否一致
+
+## 推荐执行顺序
+
+1. 保持新数据写入时 `metadata` 完整
+2. 把模型和 diff 逻辑完全切成 metadata-first
+3. 写一条历史回填脚本
+4. 回填后观察一轮
+5. 正式执行删列迁移
+
+## 推荐迁移 SQL
+
+仅在确认全部读取链路已去依赖后执行：
+
+```sql
+ALTER TABLE collected_data
+DROP COLUMN IF EXISTS country,
+DROP COLUMN IF EXISTS city,
+DROP COLUMN IF EXISTS latitude,
+DROP COLUMN IF EXISTS longitude,
+DROP COLUMN IF EXISTS value,
+DROP COLUMN IF EXISTS unit;
+```
+
+## 风险提示
+
+1. 地图类接口对经纬度最敏感
+   必须确保所有地图需要的记录，其 `metadata.latitude/longitude` 已回填完整。
+
+2. 历史老数据如果没有回填，删列后会直接丢失这些信息。
+
+3. 某些 collector 可能仍隐式依赖这些宽字段做差异比较，删列前必须做一次全量回归。
+
+## 当前判断
+
+当前项目已经完成“代码去依赖 + 历史回填 + readiness 检查”。  
+下一步执行顺序建议固定为：
+
+1. 先部署当前代码版本并重启后端
+2. 再做一轮功能回归
+3. 最后执行：
+   `uv run python scripts/drop_collected_data_legacy_columns.py`

docs/collected-data-history-plan.md

@@ -0,0 +1,402 @@
+# 采集数据历史快照化改造方案
+
+## 背景
+
+当前系统的 `collected_data` 更接近“当前结果表”：
+
+- 同一个 `source + source_id` 会被更新覆盖
+- 前端列表页默认读取这张表
+- `collection_tasks` 只记录任务执行状态，不直接承载数据版本语义
+
+这套方式适合管理后台，但不利于后续做态势感知、时间回放、趋势分析和版本对比。  
+如果后面需要回答下面这类问题，当前模型会比较吃力：
+
+- 某条实体在过去 7 天如何变化
+- 某次采集相比上次新增了什么、删除了什么、值变了什么
+- 某个时刻地图上“当时的世界状态”是什么
+- 告警是在第几次采集后触发的
+
+因此建议把采集数据改造成“历史快照 + 当前视图”模型。
+
+## 目标
+
+1. 每次触发采集都保留一份独立快照，历史可追溯。
+2. 管理后台默认仍然只看“当前最新状态”，不增加使用复杂度。
+3. 后续支持：
+   - 时间线回放
+   - 两次采集差异对比
+   - 趋势分析
+   - 按快照回溯告警和地图状态
+4. 尽量兼容现有接口，降低改造成本。
+
+## 结论
+
+不建议继续用以下两种单一模式：
+
+- 直接覆盖旧数据
+  问题：没有历史，无法回溯。
+
+- 软删除旧数据再全量新增
+  问题：语义不清，历史和“当前无效”混在一起，后续统计复杂。
+
+推荐方案：
+
+- 保留历史事实表
+- 维护当前视图
+- 每次采集对应一个明确的快照批次
+
+## 推荐数据模型
+
+### 方案概览
+
+建议拆成三层：
+
+1. `collection_tasks`
+   继续作为采集任务表，表示“这次采集任务”。
+
+2. `data_snapshots`
+   新增快照表，表示“某个数据源在某次任务中产出的一个快照批次”。
+
+3. `collected_data`
+   从“当前结果表”升级为“历史事实表”，每一行归属于一个快照。
+
+同时再提供一个“当前视图”：
+
+- SQL View / 物化视图 / API 查询层封装均可
+- 语义是“每个 `source + source_id` 的最新有效记录”
+
+### 新增表：`data_snapshots`
+
+建议字段：
+
+| 字段 | 类型 | 含义 |
+|---|---|---|
+| `id` | bigint PK | 快照主键 |
+| `datasource_id` | int | 对应数据源 |
+| `task_id` | int | 对应采集任务 |
+| `source` | varchar(100) | 数据源名，如 `top500` |
+| `snapshot_key` | varchar(100) | 可选，业务快照标识 |
+| `reference_date` | timestamptz nullable | 这批数据的参考时间 |
+| `started_at` | timestamptz | 快照开始时间 |
+| `completed_at` | timestamptz | 快照完成时间 |
+| `record_count` | int | 快照总记录数 |
+| `status` | varchar(20) | `running/success/failed/partial` |
+| `is_current` | bool | 当前是否是该数据源最新快照 |
+| `parent_snapshot_id` | bigint nullable | 上一版快照，可用于 diff |
+| `summary` | jsonb | 本次快照统计摘要 |
+
+说明：
+
+- `collection_tasks` 偏“执行过程”
+- `data_snapshots` 偏“数据版本”
+- 一个任务通常对应一个快照，但保留分层更清晰
+
+### 升级表：`collected_data`
+
+建议新增字段：
+
+| 字段 | 类型 | 含义 |
+|---|---|---|
+| `snapshot_id` | bigint not null | 归属快照 |
+| `task_id` | int nullable | 归属任务，便于追查 |
+| `entity_key` | varchar(255) | 实体稳定键，通常可由 `source + source_id` 派生 |
+| `is_current` | bool | 当前是否为该实体最新记录 |
+| `previous_record_id` | bigint nullable | 上一个版本的记录 |
+| `change_type` | varchar(20) | `created/updated/unchanged/deleted` |
+| `change_summary` | jsonb | 字段变化摘要 |
+| `deleted_at` | timestamptz nullable | 对应“本次快照中消失”的实体 |
+
+保留现有字段：
+
+- `source`
+- `source_id`
+- `data_type`
+- `name`
+- `title`
+- `description`
+- `country`
+- `city`
+- `latitude`
+- `longitude`
+- `value`
+- `unit`
+- `metadata`
+- `collected_at`
+- `reference_date`
+- `is_valid`
+
+### 当前视图
+
+建议新增一个只读视图：
+
+`current_collected_data`
+
+语义：
+
+- 对每个 `source + source_id` 只保留最新一条 `is_current = true` 且 `deleted_at is null` 的记录
+
+这样：
+
+- 管理后台继续像现在一样查“当前数据”
+- 历史分析查 `collected_data`
+
+## 写入策略
+
+### 触发按钮语义
+
+“触发”不再理解为“覆盖旧表”，而是：
+
+- 启动一次新的采集任务
+- 生成一个新的快照
+- 将本次结果写入历史事实表
+- 再更新当前视图标记
+
+### 写入流程
+
+1. 创建 `collection_tasks` 记录，状态 `running`
+2. 创建 `data_snapshots` 记录，状态 `running`
+3. 采集器拉取原始数据并标准化
+4. 为每条记录生成 `entity_key`
+   - 推荐：`{source}:{source_id}`
+5. 将本次记录批量写入 `collected_data`
+6. 与上一个快照做比对，计算：
+   - 新增
+   - 更新
+   - 未变
+   - 删除
+7. 更新本批记录的：
+   - `change_type`
+   - `previous_record_id`
+   - `is_current`
+8. 将上一批同实体记录的 `is_current` 置为 `false`
+9. 将本次快照未出现但上一版存在的实体标记为 `deleted`
+10. 更新 `data_snapshots.status = success`
+11. 更新 `collection_tasks.status = success`
+
+### 删除语义
+
+这里不建议真的删记录。  
+建议采用“逻辑消失”模型：
+
+- 历史行永远保留
+- 如果某实体在新快照里消失：
+  - 上一条历史记录补一条“删除状态记录”或标记 `change_type = deleted`
+  - 同时该实体不再出现在当前视图
+
+这样最适合态势感知。
+
+## API 改造建议
+
+### 保持现有接口默认行为
+
+现有接口：
+
+- `GET /api/v1/collected`
+- `GET /api/v1/collected/{id}`
+- `GET /api/v1/collected/summary`
+
+建议默认仍返回“当前视图”，避免前端全面重写。
+
+### 新增历史查询能力
+
+建议新增参数或新接口：
+
+#### 1. 当前/历史切换
+
+`GET /api/v1/collected?mode=current|history`
+
+- `current`：默认，查当前视图
+- `history`：查历史事实表
+
+#### 2. 按快照查询
+
+`GET /api/v1/collected?snapshot_id=123`
+
+#### 3. 快照列表
+
+`GET /api/v1/snapshots`
+
+支持筛选：
+
+- `datasource_id`
+- `source`
+- `status`
+- `date_from/date_to`
+
+#### 4. 快照详情
+
+`GET /api/v1/snapshots/{id}`
+
+返回：
+
+- 快照基础信息
+- 统计摘要
+- 与上一版的 diff 摘要
+
+#### 5. 快照 diff
+
+`GET /api/v1/snapshots/{id}/diff?base_snapshot_id=122`
+
+返回：
+
+- `created`
+- `updated`
+- `deleted`
+- `unchanged`
+
+## 前端改造建议
+
+### 1. 数据列表页
+
+默认仍看当前数据，不改用户使用习惯。
+
+建议新增：
+
+- “视图模式”
+  - 当前数据
+  - 历史数据
+- “快照时间”筛选
+- “只看变化项”筛选
+
+### 2. 数据详情页
+
+详情页建议展示：
+
+- 当前记录基础信息
+- 元数据动态字段
+- 所属快照
+- 上一版本对比入口
+- 历史版本时间线
+
+### 3. 数据源管理页
+
+“触发”按钮文案建议改成更准确的：
+
+- `立即采集`
+
+并在详情里补：
+
+- 最近一次快照时间
+- 最近一次快照记录数
+- 最近一次变化数
+
+## 迁移方案
+
+### Phase 1：兼容式落地
+
+目标：先保留当前页面可用。
+
+改动：
+
+1. 新增 `data_snapshots`
+2. 给 `collected_data` 增加：
+   - `snapshot_id`
+   - `task_id`
+   - `entity_key`
+   - `is_current`
+   - `previous_record_id`
+   - `change_type`
+   - `change_summary`
+   - `deleted_at`
+3. 现有数据全部补成一个“初始化快照”
+4. 现有 `/collected` 默认改查当前视图
+
+优点：
+
+- 前端几乎无感
+- 风险最小
+
+### Phase 2：启用差异计算
+
+目标：采集后可知道本次改了什么。
+
+改动：
+
+1. 写入时做新旧快照比对
+2. 写 `change_type`
+3. 生成快照摘要
+
+### Phase 3：前端态势感知能力
+
+目标：支持历史回放和趋势分析。
+
+改动：
+
+1. 快照时间线
+2. 版本 diff 页面
+3. 地图时间回放
+4. 告警和快照关联
+
+## 唯一性与索引建议
+
+### 建议保留的业务唯一性
+
+在“同一个快照内部”，建议唯一：
+
+- `(snapshot_id, source, source_id)`
+
+不要在整张历史表上强加：
+
+- `(source, source_id)` 唯一
+
+因为历史表本来就应该允许同一实体跨快照存在多条版本。
+
+### 建议索引
+
+- `idx_collected_data_snapshot_id`
+- `idx_collected_data_source_source_id`
+- `idx_collected_data_entity_key`
+- `idx_collected_data_is_current`
+- `idx_collected_data_reference_date`
+- `idx_snapshots_source_completed_at`
+
+## 风险点
+
+1. 存储量会明显增加
+   - 需要评估保留周期
+   - 可以考虑冷热分层
+
+2. 写入复杂度上升
+   - 需要批量 upsert / diff 逻辑
+
+3. 当前接口语义会从“表”变成“视图”
+   - 文档必须同步
+
+4. 某些采集器缺稳定 `source_id`
+   - 需要补齐实体稳定键策略
+
+## 对当前项目的具体建议
+
+结合当前代码，推荐这样落地：
+
+### 短期
+
+1. 先设计并落表：
+   - `data_snapshots`
+   - `collected_data` 新字段
+2. 采集完成后每次新增快照
+3. `/api/v1/collected` 默认查 `is_current = true`
+
+### 中期
+
+1. 在 `BaseCollector._save_data()` 中改成：
+   - 生成快照
+   - 批量写历史
+   - 标记当前
+2. 将 `CollectionTask.id` 关联到 `snapshot.task_id`
+
+### 长期
+
+1. 地图接口支持按 `snapshot_id` 查询
+2. 仪表盘支持“最近一次快照变化量”
+3. 告警支持绑定到快照版本
+
+## 最终建议
+
+最终建议采用：
+
+- 历史事实表：保存每次采集结果
+- 当前视图：服务管理后台默认查询
+- 快照表：承载版本批次和 diff 语义
+
+这样既能保留历史，又不会把当前页面全部推翻重做，是最适合后续做态势感知的一条路径。

docs/system-settings-plan.md

@@ -0,0 +1,48 @@
+# 系统配置中心开发计划
+
+## 目标
+
+将当前仅保存于内存中的“系统配置”页面升级为真正可用的配置中心，优先服务以下两类能力：
+
+1. 系统级配置持久化
+2. 采集调度配置管理
+
+## 第一阶段范围
+
+### 1. 系统配置持久化
+
+- 新增 `system_settings` 表，用于保存分类配置
+- 将系统、通知、安全配置从进程内存迁移到数据库
+- 提供统一读取接口，页面刷新和服务重启后保持不丢失
+
+### 2. 采集调度配置接入真实数据源
+
+- 统一内置采集器默认定义
+- 启动时自动初始化 `data_sources` 表
+- 配置页允许修改：
+  - 是否启用
+  - 采集频率（分钟）
+  - 优先级
+- 修改后实时同步到调度器
+
+### 3. 前端配置页重构
+
+- 将当前通用模板页调整为项目专用配置中心
+- 增加“采集调度”Tab
+- 保留“系统显示 / 通知 / 安全”三类配置
+- 将设置页正式接入主路由
+
+## 非本阶段内容
+
+- 邮件发送能力本身
+- 配置审计历史
+- 敏感凭证加密管理
+- 多租户或按角色细粒度配置
+
+## 验收标准
+
+- 设置项修改后重启服务仍然存在
+- 配置页可以查看并修改所有内置采集器的启停与采集频率
+- 调整采集频率后，调度器任务随之更新
+- `/settings` 页面可从主导航进入并正常工作
+

docs/version-history.md

@@ -0,0 +1,76 @@
+# Version History
+
+## Rules
+
+- 初始版本从 `0.0.1-beta` 开始
+- 每次 `bugfix` 递增 `0.0.1`
+- 每次 `feature` 递增 `0.1.0`
+- `refactor / docs / maintenance` 默认不单独 bump 版本
+
+## Assumptions
+
+- 本文基于 `main` 与 `dev` 的非 merge commit 历史整理
+- 对于既包含修复又明显引入新能力的提交，按 `feature` 处理
+- `main` 表示已进入主线，`dev` 表示当前仍在开发分支上的增量
+
+## Current Version
+
+- `main` 当前主线历史推导到：`0.16.5`
+- `dev` 当前开发分支历史推导到：`0.19.0`
+
+## Timeline
+
+| Version | Type | Branch | Commit | Summary |
+| --- | --- | --- | --- | --- |
+| `0.0.1-beta` | bootstrap | `main` | `e7033775` | first commit |
+| `0.1.0` | feature | `main` | `6cb4398f` | Modularize 3D Earth page with ES Modules |
+| `0.2.0` | feature | `main` | `aaae6a53` | Add cable graph service and data collectors |
+| `0.2.1` | bugfix | `main` | `ceb1b728` | highlight all cable segments by cable_id |
+| `0.3.0` | feature | `main` | `14d11cd9` | add ArcGIS landing points and cable-landing relation collectors |
+| `0.4.0` | feature | `main` | `99771a88` | make ArcGIS data source URLs configurable |
+| `0.5.0` | feature | `main` | `de325521` | add data sources config system and Earth API integration |
+| `0.5.1` | bugfix | `main` | `b06cb460` | remove ignored files from tracking |
+| `0.5.2` | bugfix | `main` | `948af2c8` | fix coordinates-display position |
+| `0.6.0` | feature | `main` | `4e487b31` | upload new geo json |
+| `0.6.1` | bugfix | `main` | `02991730` | add cable_id to API response for cable highlighting |
+| `0.6.2` | bugfix | `main` | `c82e1d5a` | 修复 3D 地球坐标映射多个严重 bug |
+| `0.7.0` | feature | `main` | `3b0e9dec` | 统一卫星和线缆锁定逻辑，使用 lockedObject 系统 |
+| `0.7.1` | bugfix | `main` | `11a9dda9` | 修复 resetView 调用并统一启动脚本到 `planet.sh` |
+| `0.7.2` | bugfix | `main` | `e21b783b` | 修复 ArcGIS landing GeoJSON 坐标解析错误 |
+| `0.8.0` | feature | `main` | `f5083071` | 自动旋转按钮改为播放/暂停图标状态 |
+| `0.8.1` | bugfix | `main` | `777891f8` | 修复 resetView 视角和离开地球隐藏 tooltip |
+| `0.9.0` | feature | `main` | `1189fec0` | init view to China coordinates |
+| `0.10.0` | feature | `main` | `6fabbcfe` | request geolocation on resetView, fallback to China |
+| `0.11.0` | feature | `main` | `0ecc1bc5` | cable state management, hover/lock visual separation |
+| `0.12.0` | feature | `main` | `bb6b18fe` | satellite dot rendering with hover/lock rings |
+| `0.13.0` | feature | `main` | `3fcbae55` | add cable-landing point relation via `city_id` |
+| `0.14.0` | feature | `main` | `96222b9e` | toolbar layout and cable breathing effect improvements |
+| `0.15.0` | feature | `main` | `49a9c338` | toolbar and zoom improvements |
+| `0.16.0` | feature | `main` | `78bb639a` | toolbar zoom improvements and toggle-cables |
+| `0.16.1` | bugfix | `main` | `d9a64f77` | fix iframe scrollbar issue |
+| `0.16.2` | bugfix | `main` | `af29e90c` | prevent cable hover/click when cables are hidden |
+| `0.16.3` | bugfix | `main` | `eabdbdc8` | clear lock state when hiding satellites or cables |
+| `0.16.4` | bugfix | `main` | `0c950262` | fix satellite trail origin line and sync button state |
+| `0.16.5` | bugfix | `main` | `9d135bf2` | revert unstable toolbar change |
+| `0.16.6` | bugfix | `dev` | `465129ee` | use timestamp-based trail filtering to prevent flash |
+| `0.17.0` | feature | `dev` | `1784c057` | add predicted orbit display for locked satellites |
+| `0.17.1` | bugfix | `dev` | `543fe35f` | fix ring size attenuation and breathing animation |
+| `0.17.2` | bugfix | `dev` | `b9fbacad` | prevent selecting satellites on far side of earth |
+| `0.17.3` | bugfix | `dev` | `b57d69c9` | remove debug console.log for ring create/update |
+| `0.17.4` | bugfix | `dev` | `81a0ca5e` | fix back-facing detection with proper coordinate transform |
+| `0.18.0` | feature | `dev` | `ef0fefdf` | persist system settings and refine admin layouts |
+| `0.18.1` | bugfix | `dev` | `cc5f16f8` | fix settings layout and frontend startup checks |
+| `0.19.0` | feature | `dev` | `020c1d50` | refine data management and collection workflows |
+
+## Maintenance Commits Not Counted as Version Bumps
+
+这些提交被视为维护性工作，因此未单独递增版本号：
+
+- `3145ff08` Add `.gitignore` and clean
+- `4ada75ca` new branch
+- `c2eba54d` 整理资源文件，添加 legacy 路由
+- `82f7aa29` 提取地球坐标常量到 `EARTH_CONFIG`
+- `d18e400f` remove dead code
+- `869d661a` abstract cable highlight logic
+- `4f922f13` extract satellite config to `SATELLITE_CONFIG`
+- `3e3090d7` docs: add architecture refactor and webgl instancing plans

frontend/bun.lock

@@ -0,0 +1,477 @@
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+  "lockfileVersion": 1,
+  "configVersion": 0,
+  "workspaces": {
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+        "axios": "^1.6.2",
+        "dayjs": "^1.11.10",
+        "react": "^18.2.0",
+        "react-dom": "^18.2.0",
+        "react-resizable": "^3.1.3",
+        "react-router-dom": "^6.21.0",
+        "simplex-noise": "^4.0.1",
+        "socket.io-client": "^4.7.2",
+        "three": "^0.160.0",
+        "zustand": "^4.4.7",
+      },
+      "devDependencies": {
+        "@types/react": "^18.2.45",
+        "@types/react-dom": "^18.2.18",
+        "@vitejs/plugin-react": "^4.2.1",
+        "typescript": "^5.3.3",
+        "vite": "^5.0.10",
+      },
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+}