Remove the level input from the boss defeat modal since the app doesn't
track levels elsewhere. Team selection is now just checkboxes without
requiring level entry.
- Remove level input UI from BossDefeatModal.tsx
- Add alembic migration to make boss_result_team.level nullable
- Update model and schemas to make level optional (defaults to null)
- Conditionally render level in boss result display
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add user authentication with login/signup/protected routes, boss pokemon
detail fields and result team tracking, moves and abilities selector
components and API, run ownership and visibility controls, and various
UI improvements across encounters, run list, and journal pages.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
