refactor(db)!: clean up business SQL access

- make realtime replacement and analysis result writes transactional\n- consolidate SCADA repositories and remove process-global project state\n- validate SCADA batches and use indexed GIS-backed business queries\n\nBREAKING CHANGE: remove the public analysis result writer and the pipeline-health network_name query parameter.

app/api/v1/endpoints/timeseries/scada.py

@@ -2,17 +2,41 @@ from fastapi import APIRouter, Depends, HTTPException, Query, Path, Body
 from typing import List
 from datetime import datetime
 from psycopg import AsyncConnection
+from pydantic import BaseModel, Field, field_validator
 
+from app.infra.db.postgresql.scada import ScadaInfoRepository
 from app.infra.db.timescaledb.repositories.scada import ScadaRepository
-from .dependencies import get_timescale_connection
+from .dependencies import get_postgres_connection, get_timescale_connection
 
 router = APIRouter()
+SCADA_BATCH_MAX_ITEMS = 10_000
+
+
+class ScadaReadingBatchItem(BaseModel):
+    time: datetime
+    device_id: str = Field(min_length=1)
+    monitored_value: float | None = None
+    cleaned_value: float | None = None
+
+    @field_validator("device_id")
+    @classmethod
+    def normalize_device_id(cls, value: str) -> str:
+        normalized = value.strip()
+        if not normalized:
+            raise ValueError("device_id must not be blank")
+        return normalized
 
 
 @router.post("/timeseries/scada-readings/batches", status_code=201, summary="批量插入SCADA监测数据")
 async def insert_scada_data(
-    data: List[dict] = Body(..., description="SCADA设备监测数据列表"),
+    data: List[ScadaReadingBatchItem] = Body(
+        ...,
+        min_length=1,
+        max_length=SCADA_BATCH_MAX_ITEMS,
+        description="SCADA设备监测数据列表",
+    ),
     conn: AsyncConnection = Depends(get_timescale_connection),
+    postgres_conn: AsyncConnection = Depends(get_postgres_connection),
 ):
     """
     批量插入SCADA监测数据
@@ -25,7 +49,20 @@ async def insert_scada_data(
     Returns:
         插入成功的记录数
     """
-    await ScadaRepository.insert_scada_batch(conn, data)
+    rows = [item.model_dump() for item in data]
+    requested_ids = list(dict.fromkeys(item["device_id"] for item in rows))
+    existing_ids = await ScadaInfoRepository.get_existing_device_ids(
+        postgres_conn, requested_ids
+    )
+    missing_ids = [
+        device_id for device_id in requested_ids if device_id not in existing_ids
+    ]
+    if missing_ids:
+        raise HTTPException(
+            status_code=422,
+            detail=f"SCADA devices do not exist in BizDB: {', '.join(missing_ids)}",
+        )
+    await ScadaRepository.insert_scada_batch(conn, rows)
     return {"message": f"Inserted {len(data)} records"}