- Add _onCreate/_preDelete lifecycle methods to VagabondItem for automatic
feature application and cleanup when classes are added/removed
- Add updateActor hook to apply new features when character level increases
- Implement applyClassFeatures() with idempotency to prevent duplicate effects
- Add _applyClassProgression() for mana/castingMax from class progression
- Add _applyTrainedSkills() to mark class skills as trained
- Fix getCastingMaxAtLevel() to sum values instead of taking maximum
- Add comprehensive test suite (10 tests) covering unit and integration tests
Effects are tagged with vagabond flags for easy filtering and management.
Methods calculate progression values directly for robustness with embedded items.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
