更新 GitHub Actions 工作流，统一使用 ubuntu-24.04 作为运行环境；新增发布 WebUI 产物的工作流

src/config/config.py

@@ -215,6 +215,12 @@ class ConfigManager:
     def register_reload_callback(self, callback: Callable[[], object]) -> None:
         self._reload_callbacks.append(callback)
 
+    def unregister_reload_callback(self, callback: Callable[[], object]) -> None:
+        try:
+            self._reload_callbacks.remove(callback)
+        except ValueError:
+            return
+
     async def reload_config(self) -> bool:
         async with self._reload_lock:
             try:

src/webui/app.py

@@ -1,7 +1,8 @@
 """FastAPI 应用工厂 - 创建和配置 WebUI 应用实例"""
 
-import mimetypes
+from importlib import import_module
 from pathlib import Path
+import mimetypes
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import FileResponse
@@ -113,12 +114,15 @@ def _setup_static_files(app: FastAPI):
     mimetypes.add_type("text/css", ".css")
     mimetypes.add_type("application/json", ".json")
 
-    base_dir = Path(__file__).parent.parent.parent
-    static_path = base_dir / "webui" / "dist"
+    static_path = _resolve_static_path()
+    if static_path is None:
+        logger.warning("❌ WebUI 静态文件目录不存在")
+        logger.warning("💡 请先构建前端: cd dashboard && npm run build")
+        return
 
     if not static_path.exists():
         logger.warning(f"❌ WebUI 静态文件目录不存在: {static_path}")
-        logger.warning("💡 请先构建前端: cd webui && npm run build")
+        logger.warning("💡 请先构建前端: cd dashboard && npm run build")
         return
 
     if not (static_path / "index.html").exists():
@@ -148,6 +152,24 @@ def _setup_static_files(app: FastAPI):
     logger.info(f"✅ WebUI 静态文件服务已配置: {static_path}")
 
 
+def _resolve_static_path() -> Path | None:
+    try:
+        module = import_module("maibot_dashboard")
+        get_dist_path = getattr(module, "get_dist_path", None)
+        if callable(get_dist_path):
+            package_path = get_dist_path()
+            if isinstance(package_path, Path) and package_path.exists():
+                return package_path
+    except Exception:
+        pass
+
+    base_dir = Path(__file__).parent.parent.parent
+    static_path = base_dir / "webui" / "dist"
+    if static_path.exists():
+        return static_path
+    return None
+
+
 def show_access_token():
     """显示 WebUI Access Token（供启动时调用）"""
     try:

src/webui/webui_server.py

@@ -1,23 +1,44 @@
 """独立的 WebUI 服务器 - 运行在 0.0.0.0:8001"""
 
-import asyncio
 from uvicorn import Config, Server as UvicornServer
+
+import asyncio
+
 from src.common.logger import get_logger
+from src.config.config import config_manager
 from src.webui.app import create_app, show_access_token
 
 logger = get_logger("webui_server")
 
 
+class _ASGIProxy:
+    def __init__(self, app):
+        self._app = app
+
+    def set_app(self, app) -> None:
+        self._app = app
+
+    async def __call__(self, scope, receive, send):
+        await self._app(scope, receive, send)
+
+
 class WebUIServer:
     """独立的 WebUI 服务器"""
 
     def __init__(self, host: str = "0.0.0.0", port: int = 8001):
         self.host = host
         self.port = port
-        self.app = create_app(host=host, port=port, enable_static=True)
+        self._app = create_app(host=host, port=port, enable_static=True)
+        self.app = _ASGIProxy(self._app)
         self._server = None
 
         show_access_token()
+        config_manager.register_reload_callback(self.reload_app)
+
+    async def reload_app(self) -> None:
+        self._app = create_app(host=self.host, port=self.port, enable_static=True)
+        self.app.set_app(self._app)
+        logger.info("WebUI 应用已热重载")
 
     async def start(self):
         """启动服务器"""
@@ -71,6 +92,8 @@ class WebUIServer:
         except Exception as e:
             logger.error(f"❌ WebUI 服务器运行错误: {e}", exc_info=True)
             raise
+        finally:
+            config_manager.unregister_reload_callback(self.reload_app)
 
     def _check_port_available(self) -> bool:
         """检查端口是否可用（支持 IPv4 和 IPv6）"""