完全移除预热（prewarm）功能

- 删除 src/utils/prewarm_dashboard.py
- 删除 scripts/prewarm_dashboard_cache.py、prewarm_dashboard_worker.py
- docker-compose.yml 移除 polyweather_prewarm 服务
- runtime_coordinator.py 移除预热循环启动逻辑
- web/core.py 移除 prewarm status 上报
- web/routers/system.py 移除 /api/system/prewarm 端点
- web/services/system_api.py 移除 run_system_prewarm
- city_runtime.py DEFAULT_PREWARM_CITIES 改名为 DEFAULT_STATUS_CITIES
- 清理 env.example、测试、VPS .env 中的预热配置

scripts/prewarm_dashboard_cache.py

@@ -1,49 +0,0 @@
-from __future__ import annotations
-
-import argparse
-import os
-import sys
-from pathlib import Path
-
-ROOT = Path(__file__).resolve().parents[1]
-if str(ROOT) not in sys.path:
-    sys.path.insert(0, str(ROOT))
-
-
-def parse_args() -> argparse.Namespace:
-    from src.utils.prewarm_dashboard import DEFAULT_CITIES
-
-    parser = argparse.ArgumentParser(
-        description="Prewarm PolyWeather summary/detail/market caches for selected cities.",
-    )
-    parser.add_argument(
-        "--base-url",
-        default=os.getenv("POLYWEATHER_BACKEND_URL", "http://127.0.0.1:8000"),
-        help="Backend base URL, defaults to POLYWEATHER_BACKEND_URL or http://127.0.0.1:8000",
-    )
-    parser.add_argument(
-        "--cities",
-        default=",".join(DEFAULT_CITIES),
-        help="Comma-separated city names to prewarm",
-    )
-    parser.add_argument("--force-refresh", action="store_true")
-    parser.add_argument("--include-detail", action="store_true")
-    parser.add_argument("--include-market", action="store_true")
-    return parser.parse_args()
-
-
-def main() -> int:
-    args = parse_args()
-    from src.utils.prewarm_dashboard import run_prewarm
-
-    return run_prewarm(
-        base_url=args.base_url,
-        cities=args.cities,
-        force_refresh=bool(args.force_refresh),
-        include_detail=bool(args.include_detail),
-        include_market=bool(args.include_market),
-    )
-
-
-if __name__ == "__main__":
-    raise SystemExit(main())

scripts/prewarm_dashboard_worker.py

@@ -1,65 +0,0 @@
-from __future__ import annotations
-
-import argparse
-import os
-import sys
-from pathlib import Path
-
-ROOT = Path(__file__).resolve().parents[1]
-if str(ROOT) not in sys.path:
-    sys.path.insert(0, str(ROOT))
-
-
-def parse_args() -> argparse.Namespace:
-    from src.utils.prewarm_dashboard import DEFAULT_CITIES
-
-    parser = argparse.ArgumentParser(
-        description="Run a background dashboard prewarm worker for hot PolyWeather cities.",
-    )
-    parser.add_argument(
-        "--base-url",
-        default=os.getenv("POLYWEATHER_BACKEND_URL", "http://127.0.0.1:8000"),
-        help="Backend base URL, defaults to POLYWEATHER_BACKEND_URL or http://127.0.0.1:8000",
-    )
-    parser.add_argument(
-        "--cities",
-        default=",".join(DEFAULT_CITIES),
-        help="Comma-separated city names to prewarm",
-    )
-    parser.add_argument(
-        "--interval-sec",
-        type=int,
-        default=int(os.getenv("POLYWEATHER_PREWARM_INTERVAL_SEC", "300")),
-        help="Worker interval in seconds",
-    )
-    parser.add_argument(
-        "--jitter-sec",
-        type=int,
-        default=int(os.getenv("POLYWEATHER_PREWARM_JITTER_SEC", "20")),
-        help="Random jitter added to each loop in seconds",
-    )
-    parser.add_argument("--force-refresh", action="store_true")
-    parser.add_argument("--include-detail", action="store_true")
-    parser.add_argument("--include-market", action="store_true")
-    parser.add_argument("--once", action="store_true")
-    return parser.parse_args()
-
-
-def main() -> int:
-    args = parse_args()
-    from src.utils.prewarm_dashboard import run_worker_loop
-
-    return run_worker_loop(
-        base_url=args.base_url,
-        cities=args.cities,
-        interval_sec=args.interval_sec,
-        jitter_sec=args.jitter_sec,
-        force_refresh=bool(args.force_refresh),
-        include_detail=bool(args.include_detail),
-        include_market=bool(args.include_market),
-        once=bool(args.once),
-    )
-
-
-if __name__ == "__main__":
-    raise SystemExit(main())