- Extract ComposerToolbar component for toolbar UI and logic
- Create TextStyleDropdown and MediaInsertDropdown components
- Extract ComposerMediaHandler for all media operations
- Create ComposerLinkManager for link-related features
- Extract useComposerEvents hook for event handling
- Create editorConfig utility for configuration logic
- Refactor main component from 1,347 to ~300 lines
- Maintain backward compatibility with shim component
- Improve maintainability with single-responsibility components
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Co-Authored-By: Claude <noreply@anthropic.com>