feat: FIT-983: [FSM UI] StateChip popover with history

[yyassi-heartex]

This pull request introduces a comprehensive state transition history feature for tasks and annotations, including backend API endpoints and frontend UI components for displaying state history in popovers. The changes enable users to view the complete FSM (finite state machine) state transition history for tasks and annotations, improving transparency and debugging capabilities.

Backend: State History API Endpoints

• Added two new API endpoints in label_studio/tasks/api.py to retrieve the full state transition history for a specific task or annotation, including metadata such as who triggered the transition, timestamps, and reasons. These endpoints are registered in label_studio/tasks/urls.py. [1] [2]

Frontend: State History Popover Components and Hooks

• Introduced a reusable StateHistoryPopover React component in web/apps/labelstudio/src/components/FSM/StateHistoryPopover.tsx that displays the state history in a popover with color-coded badges, timestamps, and user info.
• Added a custom React hook useStateHistory for fetching state history from the new API endpoints, including caching and error handling.
• Implemented formatting utilities for state names, timestamps, and user names in formatters.ts to ensure user-friendly display.
• Exposed the new FSM components and types via the index.ts barrel file for easy import elsewhere.

Integration and UI Enhancements

• Created a new StateChip component in web/libs/datamanager/src/components/CellViews/StateChip.tsx that displays the current state as a badge and, when interactive, opens the state history popover on click. This provides a consistent and interactive way to inspect state history from data tables or detail views.

Minor Cleanup

• Removed an unnecessary console.log statement from the PeopleList component.

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.46%. Comparing base (192d7db) to head (9028e15).
⚠️ Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
web/libs/ui/src/lib/state-chip/state-chip.tsx	0.00%	13 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #8809      +/-   ##
===========================================
- Coverage    61.27%   58.46%   -2.82%     
===========================================
  Files          812      555     -257     
  Lines        63626    40244   -23382     
  Branches     10765    10770       +5     
===========================================
- Hits         38989    23527   -15462     
+ Misses       24633    16713    -7920     
  Partials         4        4              

Flag	Coverage Δ
lsf-e2e	52.60% <0.00%> (?)
lsf-integration	49.07% <0.00%> (-0.02%)	⬇️
lsf-unit	8.39% <ø> (ø)
pytests	?

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[yyassi-heartex]

/git merge

Workflow run
Successfully merged: 10 files changed, 101 insertions(+), 23 deletions(-)