feat: implement authentication middleware and routes

- Added `auth.ts` for JWT authentication middleware.
- Created `auth` route to handle authentication and token verification.
- Integrated authentication middleware into `media.ts` for protected routes.
- Updated `main.ts` to register the new authentication route.

routes/media.ts

@@ -1,9 +1,12 @@
 import { Hono } from 'hono'
 import { db } from '../db/index.ts'
 import type { JwtVariables } from 'hono/jwt'
+import { authMiddleware } from '../auth.ts'
 
 const media = new Hono<{ Variables: JwtVariables }>()
 
+media.use('/*', authMiddleware)
+
 // 获取所有媒体记录
 media.get('/list', (c) => {
   try {