v0.5.0

feat: custom entity mapping, Fleet API fixes, climate indicator

- Custom Entities integration mode with grouped HA entity pickers
- Fix Fleet entity names (froot/boot), no toggle_cover, open-only frunk
- Case-insensitive seat heater levels, conditional rear seats
- Spinning fan icon when climate active
- Camp/dog mode via Fleet preset_modes
- Remove Location, Schedules, Security nav rows (no Fleet API support)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>