{"success":true,"message":"Welcome to the Book API","services":{"tts":{"endpoint":"/api/tts","description":"Text-to-Speech generation using Gemini 2.5 Pro Preview TTS","voices":"/api/tts/voices","health":"/api/tts/health"},"translation":{"endpoint":"/api/translate","description":"Book translation using Gemini 2.5 Flash Lite","languages":"/api/translate/languages","health":"/api/translate/health"}},"authentication":{"required":true,"methods":["X-API-Key header","Authorization header","apiKey query parameter"],"example":"X-API-Key: your_api_key_here"},"timestamp":"2026-05-09T15:49:04.042Z"}