{"success":true,"message":"Comms App Backend API","version":"1.0.0","endpoints":["GET /health - Health check","GET /api/subscriptions/status/:userId - Get subscription status","POST /api/subscriptions/validate - Validate receipt (legacy compatibility)","GET /api/subscriptions/history/:userId - Get subscription history","POST /api/subscriptions/sync/:userId - Sync subscription status","GET /api/subscriptions/premium/:userId - Check premium access","POST /api/webhooks/revenuecat - RevenueCat webhook notifications","GET /api/webhooks/test - Test webhook service","POST /api/webhooks/supabase/profile - Supabase profile insert notifications","POST /api/tts/synthesize - Convert text to speech using ElevenLabs","POST /api/scorer/compare - Compare user message with correct message","DELETE /api/account - Delete user account and all data"]}