# Sub-Task 1: Spire UI Fixes (Bugs 1, 2, 3)

## Scope
- **Components affected**:
  - `components/SpireModeUI.tsx` (Floor health display, Climb Down button, activity log)
  - `components/SpireTab.tsx` (Redesign as Spire Stats, move ClimbSpireButton here)
  - Spire state management (hooks/context for spire floor tracking, health, combat state)
- **Files potentially affected**:
  - `store/spireSlice.ts` or similar state management for spire
  - `types/spire.ts` if type definitions need updates

## Acceptance Criteria
1. **Bug 1**: Floor health display in SpireModeUI updates reactively after every spell cast (verify by casting spells in spire and observing health change immediately)
2. **Bug 2**: "Climb Down" button triggers floor-by-floor combat downward; player can only exit spire after reaching and clearing bottom floor (verify by climbing down multiple floors, confirm exit only at bottom)
3. **Bug 3**: 
   - SpireTab redesigned as "Spire Stats" view (no longer shows misleading Current Floor stat)
   - ClimbSpireButton moved from SpireModeUI to SpireTab
   - Activity log moved from SpireTab to SpireModeUI
4. No regressions in other spire functionality

## Dependencies
- None (can be executed first)

## Estimated Complexity
- Medium (3 linked UI components + state management)