清理市场概览残留：删除 MarketOverviewBanner+refresh_policy 中的 marketOverview 条目

web/routers/scan.py

@@ -5,8 +5,6 @@ from __future__ import annotations
 from fastapi import APIRouter, Request
 
 from web.services.scan_api import (
-    get_scan_city_ai_forecast_payload,
-    get_scan_city_ai_stream_response,
     get_scan_terminal_ai_payload,
     get_scan_terminal_overview_payload,
     get_scan_terminal_payload,
@@ -54,16 +52,6 @@ async def scan_terminal_ai(request: Request):
     return await get_scan_terminal_ai_payload(request)
 
 
-@router.post("/api/scan/terminal/ai-city")
-async def scan_terminal_ai_city(request: Request):
-    return await get_scan_city_ai_forecast_payload(request)
-
-
-@router.post("/api/scan/terminal/ai-city/stream")
-async def scan_terminal_ai_city_stream(request: Request):
-    return await get_scan_city_ai_stream_response(request)
-
-
 @router.post("/api/scan/terminal/overview")
 async def scan_terminal_overview(request: Request):
     return await get_scan_terminal_overview_payload(request)