feat: enhance date handling and indexing logic across connectors

- Added normalization for "undefined" strings to None in date parameters to prevent parsing errors.
- Improved date range validation to ensure start_date is strictly before end_date, adjusting end_date if necessary.
- Updated Google Calendar and Composio connector indexing logic to handle duplicate content more effectively, logging warnings for skipped events.
- Enhanced error handling during final commits to manage integrity errors gracefully.
- Refactored date handling in various connector indexers for consistency and reliability.

surfsense_web/components/assistant-ui/connector-popup.tsx

@@ -259,7 +259,13 @@ export const ConnectorIndicator: FC = () => {
 							editingConnector.connector_type !== "GOOGLE_DRIVE_CONNECTOR"
 								? () => {
 										startIndexing(editingConnector.id);
-										handleQuickIndexConnector(editingConnector.id, editingConnector.connector_type, stopIndexing);
+										handleQuickIndexConnector(
+											editingConnector.id,
+											editingConnector.connector_type,
+											stopIndexing,
+											startDate,
+											endDate
+										);
 									}
 								: undefined
 						}