feat: Implement DeepWiki documentation generation tools

- Added `__init__.py` in `codexlens/tools` for documentation generation.
- Created `deepwiki_generator.py` to handle symbol extraction and markdown generation.
- Introduced `MockMarkdownGenerator` for testing purposes.
- Implemented `DeepWikiGenerator` class for managing documentation generation and file processing.
- Added unit tests for `DeepWikiStore` to ensure proper functionality and error handling.
- Created tests for DeepWiki TypeScript types matching.

.claude/skills/team-ux-improve/wisdom/patterns/state-management.md

@@ -0,0 +1,14 @@
+# State Management Patterns
+
+## Local Component State
+- Use for UI-only state (open/closed, hover, focus)
+- Keep close to where it's used
+
+## Shared State
+- Lift state to lowest common ancestor
+- Use context or state management library for deep trees
+
+## Async State
+- Track loading, error, and success states
+- Handle race conditions with request cancellation
+- Implement retry logic with exponential backoff