feat: Recreate Spire Combat Page — full spire climbing experience

- Add guardian-encounters.ts: Extended guardian definitions for all mana types (compound, exotic, combo) with dynamic name generation
- Add spire-utils.ts: Spire-specific utilities (room generation, enemy stat scaling, insight calculation)
- Add enemy-generator.ts: Enemy generation with combinable modifiers (mage, shield, armored, swarm, agile)
- Add SpireCombatPage/ directory with modular sub-components:
  - SpireHeader.tsx: Floor info, climb controls, exit button, HP/room progress bars
  - RoomDisplay.tsx: Current room info with enemies, barriers, armor, dodge stats
  - SpireCombatControls.tsx: Spell selection panel, golem status panel
  - SpireActivityLog.tsx: Combat activity log
  - SpireManaDisplay.tsx: Compact mana display with elemental pools
- Modify page.tsx: Conditionally render SpireCombatPage when spireMode is true
- Add comprehensive tests (49 tests) for spire utilities, guardian encounters, and enemy generation

.gitignore

@@ -48,3 +48,4 @@ prompt
 
 server.log
 # Skills directory
+.desloppify/