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/services/scheduler.py

@@ -175,19 +175,29 @@ async def run_collector_task(collector_name: str):
             )
 
         try:
-            collector._datasource_id = datasource.id
+            datasource_id = datasource.id
+            datasource_source = datasource.source
+            collector._datasource_id = datasource_id
             logger.info_event(
                 "Running collector",
                 event="collector.run.started",
-                context={"collector_name": collector_name, "datasource_id": datasource.id},
+                context={"collector_name": collector_name, "datasource_id": datasource_id},
             )
             task_result = await collector.run(db)
+            datasource = await db.get(DataSource, datasource_id)
+            if datasource is None:
+                logger.error_event(
+                    "Datasource disappeared after collector run",
+                    event="collector.run.datasource_missing_after_run",
+                    context={"collector_name": collector_name, "datasource_id": datasource_id},
+                )
+                return
             datasource.last_run_at = datetime.now(UTC)
             datasource.last_status = task_result.get("status")
             if datasource.last_status == "success":
-                effective_candidate = await get_builtin_effective_candidate(db, datasource.source)
+                effective_candidate = await get_builtin_effective_candidate(db, datasource_source)
                 checksum, _credential_context = await build_builtin_connectivity_checksum(
-                    datasource.source,
+                    datasource_source,
                     effective_candidate["endpoint"],
                     effective_candidate["auth_type"],
                     effective_candidate["headers"],
@@ -196,7 +206,7 @@ async def run_collector_task(collector_name: str):
                 )
                 await save_connectivity_success(
                     db,
-                    datasource.source,
+                    datasource_source,
                     checksum,
                     {"status_code": None},
                     connected_by="collection",
@@ -205,9 +215,11 @@ async def run_collector_task(collector_name: str):
             logger.info_event(
                 "Collector completed",
                 event="collector.run.completed",
-                context={"collector_name": collector_name, "datasource_id": datasource.id, "result": task_result},
+                context={"collector_name": collector_name, "datasource_id": datasource_id, "result": task_result},
             )
         except asyncio.CancelledError:
+            await db.rollback()
+            datasource = await db.get(DataSource, datasource_id)
             datasource.last_run_at = datetime.now(UTC)
             datasource.last_status = "cancelled"
             await db.commit()
@@ -218,6 +230,8 @@ async def run_collector_task(collector_name: str):
             )
             raise
         except Exception as exc:
+            await db.rollback()
+            datasource = await db.get(DataSource, datasource_id)
             datasource.last_run_at = datetime.now(UTC)
             datasource.last_status = "failed"
             await db.commit()