Fix TypeScript compilation errors with Express Request extensions

- Remove incorrect triple-slash reference path
- Use proper import for types module
- Add missing locale and t properties to Express Request interface in source file
- Ensure generated .d.ts files match source TypeScript definitions

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

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

src/server.ts

@@ -1,6 +1,6 @@
-/// <reference path="./types/index.d.ts" />
 import dotenv from 'dotenv';
 import express, { Request, Response, NextFunction, Application } from 'express';
+import './types';
 import cors from 'cors';
 import path from 'path';
 import cron from 'node-cron';

src/types/index.ts

@@ -75,6 +75,8 @@ declare global {
         id: string;
         role: string;
       };
+      locale?: string;
+      t?: (key: string, params?: Record<string, string>) => string;
     }
   }
 }