chore: update dependencies and refactor webhook handling

- Added new dependencies for SQLite support and improved HTTP client functionality in go.mod and go.sum.
- Refactored webhook server implementation to utilize a simplified version, enhancing code maintainability.
- Updated API client to leverage a generic request method, streamlining API interactions.
- Modified configuration to include access token for webhook server, improving security.
- Enhanced event handling and request processing in the API client for better performance.

internal/di/lifecycle.go

@@ -61,13 +61,11 @@ func RegisterLifecycleHooks(
 				logger.Error("Failed to stop bots", zap.Error(err))
 			}
 
-			// 停止分发器
+			// 停止分发器（先停止分发器，让它有机会处理完当前事件）
 			dispatcher.Stop()
 
 			// 停止事件总线
 			eventBus.Stop()
-
-			logger.Info("CellBot application stopped successfully")
 			return nil
 		},
 	})