- GET /api/tests/{id}/versions — returns full version chain from oldest to newest
- TestEdit: shows 'История версий' table when multiple versions exist,
current version highlighted, links to navigate between versions
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Backend:
- migration 003: add parent_id to tests table
- PUT /api/tests/{id}: edit in place if no attempts, create new version otherwise
- GET /api/tests: show only latest versions (no successor)
Frontend:
- TestForm: extracted reusable form component
- TestCreate: refactored to use TestForm
- TestEdit: full edit mode with pre-populated form, version redirect on new version
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>