release: bump version to 0.58.0

Release 0.58.0 includes the Earth high-precision boundary PMTiles/MVT pipeline, standardized Earth boundary source collectors, China POV boundary configuration templates, and removal of the legacy low-precision GeoJSON fallback. It also adds Earth news target-location queueing/archive support, fixes datasource task status visibility, documents the Earth surface depth-spacing rules that prevent far-zoom z-fighting snow/black blocks, and updates bilingual operations/developer docs.

backend/app/core/target_schema_registry.py

@@ -47,6 +47,18 @@ class GenericRecord(BaseModel):
         return value
 
 
+class EarthBoundarySourceRecord(BaseModel):
+    source_id: str | None = None
+    source_kind: str = Field(pattern="^(admin0-boundaries|coastline|claim-lines)$")
+    name: str | None = None
+    geometry: dict[str, Any] | None = None
+    properties: dict[str, Any] = Field(default_factory=dict)
+    artifact_path: str | None = None
+    sha256: str | None = None
+    feature_count: int | None = Field(default=None, ge=0)
+    license: str | None = None
+
+
 @dataclass(frozen=True)
 class TargetField:
     name: str
@@ -143,6 +155,24 @@ TARGET_SCHEMAS: dict[str, TargetSchema] = {
             TargetField("observed_at", "datetime", False, "观测时间", "2026-04-28T00:00:00Z"),
         ),
     ),
+    "earth_boundary_source": TargetSchema(
+        key="earth_boundary_source",
+        label="Earth 边界矢量源",
+        description="Admin-0 国界、海岸线、主张线等 Earth 边界源数据 artifact。",
+        destination="collected_data",
+        model=EarthBoundarySourceRecord,
+        fields=(
+            TargetField("source_id", "string", False, "来源侧 ID", "feature-1"),
+            TargetField("source_kind", "string", True, "边界源类型", "admin0-boundaries"),
+            TargetField("name", "string", False, "记录名称", "China"),
+            TargetField("geometry", "object", False, "GeoJSON geometry", {"type": "Polygon", "coordinates": []}),
+            TargetField("properties", "object", False, "GeoJSON properties", {"ISO_A3": "CHN"}),
+            TargetField("artifact_path", "string", False, "完整源数据本地 artifact 路径", "data/earth-boundary-sources/earth_admin0_boundaries/abc.geojson"),
+            TargetField("sha256", "string", False, "源数据 artifact SHA-256", "abc123"),
+            TargetField("feature_count", "integer", False, "源数据 feature 数", 1),
+            TargetField("license", "string", False, "源数据许可", "ODbL"),
+        ),
+    ),
 }