{"status":"ok","message":"LINE Webhook Server is running on Vercel","timestamp":"2026-10-15T10:43:33.527Z","timezone":{"server":"UTC","offset":"+00:00","taiwanTime":"2026-10-15T18:43:33.527+08:00","taiwanReadable":"2026/10/16 02:43:33"},"env":{"lineToken":"Set ✓","lineSecret":"Set ✓","assemblyaiKey":"Set ✓"}}