Merge branch 'master' of http://192.168.0.200/knowledge-base-bj/deerflow-code into dhk-1

# Conflicts:
#	frontend-web/src/components/workspace/workspace-nav-menu.tsx
#	offline-backend-20260512/backend/app/gateway/routers/multi_agent.py

frontend-web/src/App.tsx

@@ -68,7 +68,10 @@ function AppProviders({ children }: { children: React.ReactNode }) {
     // 走 next-themes forcedTheme（不写 localStorage）→ 同浏览器另开的正常系统页不受影响。
     const embedTheme = resolveForcedEmbedTheme(location.search);
     if (embedTheme) return embedTheme;
-    const routeTheme = resolveForcedThemeForPath(location.pathname);
+    const routeTheme = resolveForcedThemeForPath(
+      location.pathname,
+      location.search,
+    );
     if (routeTheme) return routeTheme;
     if (location.pathname === "/embed/roundtable") {
       const wp = readWujieProps();