{"success":true,"service":"postal-bridge","message":"API aktif. Gunakan /health atau endpoint /domains dengan header X-Bridge-API-Key.","endpoints":{"GET /health":"Health check (tanpa auth)","POST /domains":"Buat domain {\"name\":\"example.com\"}","GET /domains/{name}":"Detail domain","POST /domains/{name}/check-dns":"Cek DNS & update status Postal","DELETE /domains/{name}":"Hapus domain","POST /credentials":"Buat credential {\"name\":\"...\",\"type\":\"API|SMTP\",\"server_id\":1}","DELETE /credentials/{uuid}":"Hapus API key (?server_id=)","POST /organizations":"Buat org+mail server {\"name\":\"...\",\"permalink\":\"...\",\"server_name\":\"...\"}","POST /organizations/mail-server":"Buat mail server di org shared {\"server_name\":\"Mail Server — User\"}","POST /mail-servers":"Alias: buat mail server user (org dari config)"}}