chore: add /debug/graph endpoint to explicitly test Facebook Graph API accessibility on HF

apps/api/src/index.ts

@@ -83,6 +83,15 @@ server.get('/debug/net', async (_req, reply) => {
     }
 });
 
+server.get('/debug/graph', async (_req, reply) => {
+    try {
+        const res = await fetch('https://graph.facebook.com', { method: 'GET' });
+        return reply.send({ ok: true, status: res.status });
+    } catch (e: any) {
+        return reply.code(500).send({ ok: false, error: e?.message || String(e) });
+    }
+});
+
 server.get('/health', async () => {
     return { status: 'ok', timestamp: new Date().toISOString() };
 });