Working on the editor component tree

dev-docs/tasks/phase-2/TASK-004B-componentsPanel-react-migration/CHANGELOG.md

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+# TASK-005 Changelog
+
+## Overview
+
+This changelog tracks the implementation of the ComponentsPanel React migration, converting the legacy jQuery/underscore.js View to a modern React component.
+
+### Implementation Sessions
+
+1. **Session 1**: Foundation + Registration
+2. **Session 2**: Tree Rendering
+3. **Session 3**: Context Menus
+4. **Session 4**: Drag-Drop
+5. **Session 5**: Inline Rename + Sheets
+6. **Session 6**: Polish + TASK-004 Prep
+
+---
+
+## [Date TBD] - Task Created
+
+### Summary
+Task documentation created for ComponentsPanel React migration.
+
+### Files Created
+- `dev-docs/tasks/phase-2/TASK-005-componentspanel-react/README.md` - Full task specification
+- `dev-docs/tasks/phase-2/TASK-005-componentspanel-react/CHECKLIST.md` - Implementation checklist
+- `dev-docs/tasks/phase-2/TASK-005-componentspanel-react/CHANGELOG.md` - This file
+- `dev-docs/tasks/phase-2/TASK-005-componentspanel-react/NOTES.md` - Working notes
+
+### Context
+This task was created after TASK-004 (Runtime Migration System) reached the point where migration status badges needed to be added to ComponentsPanel. Rather than bolt React features onto a jQuery component, the decision was made to fully migrate ComponentsPanel to React first.
+
+---
+
+## Template for Future Entries
+
+```markdown
+## [YYYY-MM-DD] - Session N: [Phase Name]
+
+### Summary
+[Brief description of what was accomplished]
+
+### Files Created
+- `path/to/file.tsx` - [Purpose]
+
+### Files Modified
+- `path/to/file.ts` - [What changed and why]
+
+### Technical Notes
+- [Key decisions made]
+- [Patterns discovered]
+- [Gotchas encountered]
+
+### Testing Notes
+- [What was tested]
+- [Any edge cases discovered]
+
+### Next Steps
+- [What needs to be done next]
+```
+
+---
+
+## Progress Summary
+
+| Phase | Status | Date Started | Date Completed |
+|-------|--------|--------------|----------------|
+| Phase 1: Foundation | Not Started | - | - |
+| Phase 2: Tree Rendering | Not Started | - | - |
+| Phase 3: Context Menus | Not Started | - | - |
+| Phase 4: Drag-Drop | Not Started | - | - |
+| Phase 5: Inline Rename | Not Started | - | - |
+| Phase 6: Sheet Selector | Not Started | - | - |
+| Phase 7: Polish & Cleanup | Not Started | - | - |
+
+---
+
+## Blockers Log
+
+_Track any blockers encountered during implementation_
+
+| Date | Blocker | Resolution | Time Lost |
+|------|---------|------------|-----------|
+| - | - | - | - |
+
+---
+
+## Performance Notes
+
+_Track any performance observations_
+
+| Scenario | Observation | Action Taken |
+|----------|-------------|--------------|
+| Large component tree | - | - |
+| Rapid expand/collapse | - | - |
+| Drag-drop operations | - | - |