feat: Implement user authentication and data management features

- Added LoginModal component for user login functionality.
- Introduced API routes for user login, favorites, play records, and search history management.
- Created JSON files for storing favorites, play records, and search history.
- Updated API service to handle new endpoints and refactored data management to use API calls instead of local storage.
- Adjusted data structures in types and services to align with new API responses.

backend/src/routes/server-config.ts

@@ -0,0 +1,27 @@
+import express, { Request, Response } from "express";
+
+const router = express.Router();
+
+/**
+ * @api {get} /api/server-config Get Server Configuration
+ * @apiName GetServerConfig
+ * @apiGroup Server
+ *
+ * @apiSuccess {String} SiteName The name of the site.
+ * @apiSuccess {String} StorageType The storage type used by the server ("localstorage").
+ *
+ * @apiSuccessExample {json} Success-Response:
+ *     HTTP/1.1 200 OK
+ *     {
+ *       "SiteName": "OrionTV-Local",
+ *       "StorageType": "localstorage"
+ *     }
+ */
+router.get("/server-config", (req: Request, res: Response) => {
+  res.json({
+    SiteName: "OrionTV-Local",
+    StorageType: "localstorage",
+  });
+});
+
+export default router;