chore: remove next-auth, use simple auth

proxy.ts

@@ -1,24 +1,10 @@
 import createMiddleware from 'next-intl/middleware'
-import { NextRequest, NextResponse } from 'next/server'
+import { NextRequest } from 'next/server'
 import { routing } from '@/i18n/routing'
 
 const intlMiddleware = createMiddleware(routing)
 
 export async function middleware(request: NextRequest) {
-  const { pathname } = request.nextUrl
-
-  // Admin route'ları — token kontrolü
-  if (pathname.includes('/admin') && !pathname.includes('/admin/login')) {
-    const token =
-      request.cookies.get('next-auth.session-token')?.value ||
-      request.cookies.get('__Secure-next-auth.session-token')?.value
-
-    if (!token) {
-      const locale = pathname.split('/')[1] || 'tr'
-      return NextResponse.redirect(new URL(`/${locale}/admin/login`, request.url))
-    }
-  }
-
   return intlMiddleware(request)
 }