feat: make annotations field editable

[Hell1213]

Added full annotations editing functionality following the same pattern as tags editing. Users can now add, edit, and remove task annotations through the task details dialog. Backend handles proper annotation replacement using TaskWarrior's denotate/annotate commands.

• Contributes : Make Task Model Fields Editable on Frontend and Backend #166

Changes Made

• Backend: Added annotations field to request body, implemented TaskWarrior denotate/annotate commands
• Frontend: Added annotation editing UI with input field and badges, following tags pattern
• Tests: Updated all test files to cover annotation functionality

Checklist

• Ran npx prettier --write . (for formatting)
• Ran gofmt -w . (for Go backend)
• Ran npm test (46 test suites, 345 tests passed)
• Added unit tests for annotation features
• Verified all tests pass

Additional Notes

Core Files Modified:

• backend/models/request_body.go, backend/utils/tw/edit_task.go - Backend annotation handling
• frontend/src/components/utils/types.ts, TaskDialog.tsx, Tasks.tsx - Frontend annotation UI

Test Files Updated (for annotation coverage):

• backend/utils/tw/taskwarrior_test.go - Backend annotation tests
• frontend/src/components/HomeComponents/Tasks/__tests__/TaskDialog.test.tsx - UI component tests
• frontend/src/components/HomeComponents/Tasks/__tests__/UseEditTask.test.ts - Hook functionality tests

Implementation: Uses TaskWarrior's denotate/annotate commands to handle annotation replacement, following exact same pattern as existing tags functionality.

Demo Video :

Screencast.from.2025-12-24.02-07-45.mp4

[github-actions]

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[Hell1213]

complete the self Review:

• Backend uses TaskWarrior's denotate + annotate commands to handle annotation replacement (since TaskWarrior only supports append-only annotations)
• Frontend UI mirrors tags editing with input field, badges, and save/cancel actions