feat(sensor): 返回候选节点最大管径

tests/unit/test_sensor_placement_service.py

@@ -29,6 +29,7 @@ def test_build_workbook_contains_engineering_columns(monkeypatch):
         lambda network, locations: [
             {
                 "node_id": "J1",
+                "max_pipe_diameter": 400.0,
                 "project_x": 13500000.0,
                 "project_y": 3600000.0,
                 "map_x": 13500000.0,
@@ -75,7 +76,7 @@ def test_build_workbook_contains_engineering_columns(monkeypatch):
     assert workbook["方案信息"]["B8"].value == "未保存草稿"
 
 
-def test_sensor_points_keep_engineering_coordinates_and_transform_map_coordinates(
+def test_candidate_keeps_engineering_coordinates_and_transforms_map_coordinates(
     monkeypatch,
 ):
     monkeypatch.setattr(
@@ -84,6 +85,7 @@ def test_sensor_points_keep_engineering_coordinates_and_transform_map_coordinate
         lambda network, node_ids: [
             {
                 "node_id": "J1",
+                "max_pipe_diameter": 400.0,
                 "project_x": 3038.94,
                 "project_y": -34446.59,
                 "map_x": 13525191.530279,
@@ -93,10 +95,11 @@ def test_sensor_points_keep_engineering_coordinates_and_transform_map_coordinate
         ],
     )
 
-    point = sensor_placement._sensor_points("tjwater", ["J1"])[0]
+    point = sensor_placement.get_sensor_placement_candidate("tjwater", "J1")
 
     assert point["project_x"] == 3038.94
     assert point["project_y"] == -34446.59
+    assert point["max_pipe_diameter"] == 400.0
     assert point["longitude"] == pytest.approx(121.498863, abs=1e-6)
     assert point["latitude"] == pytest.approx(30.924784, abs=1e-6)
 
@@ -133,6 +136,8 @@ def test_sensor_nodes_use_materialized_web_mercator_geometry(monkeypatch):
     assert "ST_Y(c.coord)" in query
     assert "ST_X(gj.geom)" in query
     assert "ST_Y(gj.geom)" in query
+    assert "MAX(diameter) AS max_pipe_diameter" in query
+    assert cursor.execute.call_args.args[1] == (["J1"], ["J1"], ["J1"])
 
 
 def test_workbook_escapes_formula_in_scheme_metadata(monkeypatch):
@@ -142,6 +147,7 @@ def test_workbook_escapes_formula_in_scheme_metadata(monkeypatch):
         lambda network, locations: [
             {
                 "node_id": "J1",
+                "max_pipe_diameter": 400.0,
                 "project_x": 3038.94,
                 "project_y": -34446.59,
                 "map_x": 13525191.53,