feat: Add mobile responsive layout, open room access, and admin room management

Mobile Responsive Layout:
- Add useMediaQuery, useIsMobile, useIsTablet, useIsDesktop hooks for device detection
- Create MobileHeader component with hamburger menu and action drawer
- Create BottomToolbar for mobile navigation (Files, Members)
- Create SlidePanel component for full-screen mobile sidebars
- Update RoomDetail.tsx with mobile/desktop conditional rendering
- Update RoomList.tsx with single-column grid and touch-friendly buttons
- Add CSS custom properties for safe areas and touch targets (min 44px)
- Add mobile viewport meta tags for notched devices

Open Room Access:
- All authenticated users can view all rooms (not just their own)
- Users can join active rooms they're not members of
- Add is_member field to room responses
- Update room list API to return all rooms by default

Admin Room Management:
- Add permanent delete functionality for system admins
- Add delete confirmation dialog with room title verification
- Broadcast room deletion via WebSocket to connected users
- Add users search API for adding members

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/main.py

@@ -11,6 +11,7 @@ from fastapi.responses import FileResponse
 from app.core.config import get_settings
 from app.core.database import engine, Base
 from app.modules.auth import router as auth_router
+from app.modules.auth.users_router import router as users_router
 from app.modules.auth.middleware import auth_middleware
 from app.modules.chat_room import router as chat_room_router
 from app.modules.chat_room.services.template_service import template_service
@@ -43,12 +44,12 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
-# Authentication middleware (applies to all routes except login/logout)
-# Note: Commented out for now to allow testing without auth
-# app.middleware("http")(auth_middleware)
+# Authentication middleware (applies to all /api routes except login/logout)
+app.middleware("http")(auth_middleware)
 
 # Include routers
 app.include_router(auth_router)
+app.include_router(users_router)
 app.include_router(chat_room_router)
 app.include_router(realtime_router)
 app.include_router(file_storage_router)
@@ -81,21 +82,14 @@ async def startup_event():
         logger.warning(f"MinIO connection failed: {e} - file uploads will be unavailable")
 
 
-@app.get("/")
-async def root():
-    """Health check endpoint"""
-    return {
-        "status": "ok",
-        "service": "Task Reporter API",
-        "version": "1.0.0",
-        "description": "生產線異常即時反應系統",
-    }
-
-
-@app.get("/health")
+@app.get("/api/health")
 async def health_check():
     """Health check for monitoring"""
-    return {"status": "healthy"}
+    return {
+        "status": "healthy",
+        "service": "Task Reporter API",
+        "version": "1.0.0",
+    }
 
 
 # Serve frontend static files (only if build exists)