first commit

.env.example

@@ -0,0 +1,14 @@
+NODE_ENV=development
+PORT=8080
+GEMINI_API_KEY=your_gemini_key
+ALLOWED_ORIGINS=*
+REQUEST_LOGGING=true
+REDIS_URL=redis://redis:6379
+ISBN_CACHE_TTL_SECONDS=21600
+JWT_SECRET=please_change_me
+JWT_EXPIRES_IN=1h
+POSTGRES_HOST=postgres
+POSTGRES_PORT=5432
+POSTGRES_DB=bookibra
+POSTGRES_USER=bookibra
+POSTGRES_PASSWORD=bookibra