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- Renamed `WikiPageUpdatePrompt` to `WikiPageModifyPrompt` to better reflect its functionality of adding new information and removing outdated content in a single operation. - Enhanced the instructions for both `WikiPageModifyPrompt` and `WikiPageRetractPrompt` to clarify the handling of additions and retractions, ensuring accurate content updates. - Consolidated the logic for enqueuing retraction tasks in the `cleanupWikiOnKnowledgeDelete` method to streamline the process of managing affected pages. - Removed the `rebuildWikiIndexSimple` function to simplify the codebase, as its functionality is no longer needed with the new ingestion approach. These changes improve the clarity and efficiency of the wiki content management process, enhancing overall system performance.