feat(sensor): 返回候选节点最大管径

app/api/v1/endpoints/sensor_placement.py

@@ -2,7 +2,7 @@ import logging
 from typing import Any
 from urllib.parse import quote
 
-from fastapi import APIRouter, Depends, HTTPException, Query, status
+from fastapi import APIRouter, Depends, HTTPException, Path, Query, status
 from fastapi.responses import StreamingResponse
 from starlette.concurrency import run_in_threadpool
 
@@ -13,6 +13,7 @@ from app.algorithms.sensor import (
 from app.auth.metadata_dependencies import get_current_metadata_user
 from app.auth.project_dependencies import ProjectContext, get_project_context
 from app.domain.schemas.sensor_placement import (
+    SensorPointResponse,
     SensorPlacementExportRequest,
     SensorPlacementOptimizeRequest,
     SensorPlacementSchemeResponse,
@@ -24,6 +25,7 @@ from app.services.sensor_placement import (
     SensorPlacementValidationError,
     build_sensor_placement_workbook,
     can_edit_sensor_placement,
+    get_sensor_placement_candidate,
     get_sensor_placement_scheme,
     update_sensor_placement_scheme,
 )
@@ -94,6 +96,25 @@ def _get_scheme_response(
         raise _service_http_error(exc) from exc
 
 
+@router.get(
+    "/sensor-placement-candidates/{node_id}",
+    response_model=SensorPointResponse,
+    summary="获取监测点候选节点详情",
+)
+async def get_sensor_placement_candidate_detail(
+    node_id: str = Path(..., min_length=1, max_length=32),
+    project_context: ProjectContext = Depends(get_project_context),
+) -> dict[str, Any]:
+    try:
+        return await run_in_threadpool(
+            get_sensor_placement_candidate,
+            project_context.project_code,
+            node_id,
+        )
+    except SensorPlacementValidationError as exc:
+        raise _service_http_error(exc) from exc
+
+
 @router.post(
     "/sensor-placement-optimization-runs",
     response_model=SensorPlacementSchemeResponse,