- Removed WritingFolderRecord, WritingDocumentRecord, and related methods from global types.
- Cleaned up legacy writing workflow types and events from shared types.
- Updated serialization utility to improve type safety for IPC results.
- Changed input and output types in AiRunEvent to use 'unknown' for better type handling.
- Implemented a new terminal execution service in `terminalExec.ts` to run shell commands with configurable options.
- Removed deprecated writing tools from `writingTools.ts`.
- Updated AI task types to include 'terminal_exec' and 'local_kb_retrieval'.
- Enhanced AI run context and state management to support document selection and workspace configuration.
- Added approval request and decision types to the AI run event system.
- Modified the ChatPage component to handle terminal execution events and display results.
- Introduced UI elements for selecting documents and specifying workspace paths.
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