Add database configuration to .env.example

.env.example

@@ -49,6 +49,26 @@ BOT_STATUS=for mentions
 # Number of messages to remember per user (higher = more context, more tokens)
 MAX_CONVERSATION_HISTORY=20
 
+# Minutes of inactivity before starting a new conversation (5-1440)
+CONVERSATION_TIMEOUT_MINUTES=60
+
+# ===========================================
+# Database (PostgreSQL)
+# ===========================================
+# PostgreSQL connection URL (if not set, uses in-memory storage)
+# Format: postgresql+asyncpg://user:password@host:port/database
+DATABASE_URL=postgresql+asyncpg://daemon:daemon@localhost:5432/daemon_boyfriend
+
+# Password for PostgreSQL when using docker-compose
+POSTGRES_PASSWORD=daemon
+
+# Echo SQL statements for debugging (true/false)
+# DATABASE_ECHO=false
+
+# Connection pool settings
+# DATABASE_POOL_SIZE=5
+# DATABASE_MAX_OVERFLOW=10
+
 # ===========================================
 # Web Search (SearXNG)
 # ===========================================