feat(auth): replace login/refresh/me with /api/auth/session

app/api/auth/logout/route.ts

@@ -1,13 +1,10 @@
 import { NextRequest, NextResponse } from 'next/server';
+import { ADM_COOKIE, USR_COOKIE, buildClearCookie, isSecureCookie } from '@/lib/auth/cookies';
 
 export async function POST(request: NextRequest) {
-  const response = NextResponse.json({
-    success: true,
-    message: 'Logged out successfully'
-  });
-
-  response.cookies.delete('access_token');
-  response.cookies.delete('refresh_token');
-
-  return response;
+  const secure = isSecureCookie(request);
+  const headers = new Headers();
+  headers.append('Set-Cookie', buildClearCookie(ADM_COOKIE, secure));
+  headers.append('Set-Cookie', buildClearCookie(USR_COOKIE, secure));
+  return NextResponse.json({ success: true }, { headers });
 }