feat(server): integrate MCP queries and investigation messaging

Add project-bound OAuth MCP queries and controlled analysis with scoped evidence,
limits, timeouts and a nearby-model spatial query using EPSG:4326 inputs.
Default nearby searches to 200 meters and five results.

Integrate investigation messaging/presentation, health/readiness and typed history;
remove duplicate web search and fix online simulation and compressed baseline writes.
Include project migrations 023-025; keep local credentials and demo seeding excluded.

Validation: 319 focused pytest checks; real PostGIS temporary-table regression;
read-only Jinqian bridge radius comparison; cross-language MCP discovery/calls.

app/services/simulation_scenarios.py

@@ -222,7 +222,8 @@ def valve_close_analysis(
     modify_valve_opening: dict[str, float] = None,
     scheme_name: str = None,
     _temporary_project: str | None = None,
-) -> None:
+    persist_results: bool = True,
+) -> dict | str | None:
     """
     关阀模拟
     :param name: 模型名称，数据库中对应的名字
@@ -271,7 +272,7 @@ def valve_close_analysis(
     set_option(new_name, cs_options)
     # result = run_simulation_ex(new_name,'realtime', modify_pattern_start_time, modify_pattern_start_time, modify_total_duration,
     #                            downloading_prohibition=True)
-    simulation.run_simulation(
+    result = simulation.run_simulation(
         name=new_name,
         simulation_type="extended",
         modify_pattern_start_time=modify_pattern_start_time,
@@ -280,7 +281,9 @@ def valve_close_analysis(
         scheme_type="valve_close_analysis",
         scheme_name=scheme_name,
         result_db_name=name,
+        persist_results=persist_results,
     )
+    return result if not persist_results else None
     # step 3. restore the base model
     # for valve in valves:
     #     execute_undo(name)
@@ -303,7 +306,8 @@ def flushing_analysis(
     username: str | None = None,
     valve_control: dict[str, dict] = None,
     _temporary_project: str | None = None,
-) -> None:
+    persist_results: bool = True,
+) -> dict | str | None:
     """
     管道冲洗模拟
     :param name: 模型名称，数据库中对应的名字
@@ -425,7 +429,7 @@ def flushing_analysis(
     set_option(new_name, cs_options)
     # result = run_simulation_ex(new_name,'realtime', modify_pattern_start_time, modify_pattern_start_time, modify_total_duration,
     #                            downloading_prohibition=True)
-    simulation.run_simulation(
+    result = simulation.run_simulation(
         name=new_name,
         simulation_type="extended",
         modify_pattern_start_time=modify_pattern_start_time,
@@ -437,7 +441,9 @@ def flushing_analysis(
         result_db_name=name,
         scheme_username=username,
         scheme_detail=scheme_detail,
+        persist_results=persist_results,
     )
+    return result if not persist_results else None
     # step 4. restore the base model
     # return result
 
@@ -457,7 +463,8 @@ def contaminant_simulation(
     source_pattern: str = None,  # 污染源时间变化模式名称
     username: str | None = None,
     _temporary_project: str | None = None,
-) -> None:
+    persist_results: bool = True,
+) -> dict | str | None:
     """
     污染模拟
     :param name: 模型名称，数据库中对应的名字
@@ -568,7 +575,7 @@ def contaminant_simulation(
     # step 5. run simulation
     # result = run_simulation_ex(new_name,'realtime', modify_pattern_start_time, modify_pattern_start_time,  modify_total_duration,
     #                            downloading_prohibition=True)
-    simulation.run_simulation(
+    result = simulation.run_simulation(
         name=new_name,
         simulation_type="extended",
         modify_pattern_start_time=modify_pattern_start_time,
@@ -578,7 +585,9 @@ def contaminant_simulation(
         result_db_name=name,
         scheme_username=username,
         scheme_detail=scheme_detail,
+        persist_results=persist_results,
     )
+    return result if not persist_results else None
 
     # for i in range(1,operation_step):
     #     execute_undo(name)
@@ -600,7 +609,8 @@ def pressure_regulation(
     scheme_name: str = None,
     scada_mappings: simulation.ScadaElementMappings | None = None,
     _temporary_project: str | None = None,
-) -> None:
+    persist_results: bool = True,
+) -> dict | str | None:
     """
     区域调压模拟，用来模拟未来15分钟内，开关水泵对区域压力的影响
     :param name: 模型名称，数据库中对应的名字
@@ -645,7 +655,7 @@ def pressure_regulation(
     #                            pump_control=pump_control,
     #                            tank_initial_level_control=tank_initial_level_control,
     #                            downloading_prohibition=True)
-    simulation.run_simulation(
+    result = simulation.run_simulation(
         name=new_name,
         simulation_type="extended",
         modify_pattern_start_time=modify_pattern_start_time,
@@ -657,5 +667,7 @@ def pressure_regulation(
         scheme_name=scheme_name,
         result_db_name=name,
         scada_mappings=scada_mappings,
+        persist_results=persist_results,
     )
+    return result if not persist_results else None
     # return result