This commit includes accumulated work from the SessionMode system:
- Add SkillUnlockBanner component for celebrating skill mastery
- Improve SessionSummary to show skill unlock celebrations
- Add session detail page at /practice/[studentId]/session/[sessionId]
- Update seedTestStudents script with more realistic test data
- Extend skill-tutorial-config with more skill mappings
- Improve BKT compute with better uncertainty handling
- Update progress-manager with skill completion tracking
- Remove legacy sessions API routes (replaced by session-plans)
- Add migration 0037 for practice_sessions schema cleanup
- Add plan documents for celebration wind-down and SessionMode
- Update gitignore to exclude db backups
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Thomas Hallock