Murloc Minder

### Fixes
- Stopped tracking buffs during combat to avoid secret value taint.
- Resumed aura-based tracking safely after combat ends.
- Fixed gathering challenge progress hooks for fishing, skinning, herbalism, and mining.
- Fixed swim challenge responsiveness with real-time time-tracking updates.

### Features
- Added quick-use care buttons to the tracker (expanded view).
- Added tracker challenge state text updates (`Expand`/`Collapse`) for clarity.
- Added item tooltips across store rows, quick-buy cards, and care action entries.

### Changes
- Rebalanced item value changes.
- Main window now closes when pressing `ESC`.
- Converted swimming challenge goals to timed objectives (`short`/`long`) with live progress display.
- Updated food behavior:
  - Food now provides a flat joy bonus model.
  - Gluttonous trait increases food joy bonus and applies food cleanliness penalty.
  - Snack Tongs now adds a flat +2 joy to all food on top of other food bonuses.