refactor: anonymous/free chat experience

- Enhanced lambda function formatting in `_after_commit` for better clarity.
- Simplified generator expression in `_match_condition` for improved readability.
- Streamlined function signature in `_eligible` for consistency.
- Updated imports and refactored anonymous chat routes to use a new agent creation method.
- Added a new function `_load_anon_document` to handle document loading from Redis.
- Improved UI components by replacing legacy structures with modern alternatives, including alerts and separators.
- Refactored quota-related components to utilize new alert structures for better user feedback.
- Cleaned up unused variables and optimized component states for performance.

surfsense_web/components/new-chat/document-mention-picker.tsx

@@ -220,13 +220,7 @@ export const DocumentMentionPicker = forwardRef<
 	DocumentMentionPickerRef,
 	DocumentMentionPickerProps
 >(function DocumentMentionPicker(
-	{
-		searchSpaceId,
-		onSelectionChange,
-		onDone,
-		initialSelectedDocuments = [],
-		externalSearch = "",
-	},
+	{ searchSpaceId, onSelectionChange, onDone, initialSelectedDocuments = [], externalSearch = "" },
 	ref
 ) {
 	const search = externalSearch;