Task 10(2f): Add Activity Log to SpireModeUI

- Added ActivityLogEntry type to game types
- Added activityLog state to GameState interface
- Added addActivityLogEntry helper function in store.ts
- Added addActivityLog action to GameStore
- Hooked into combat events: damage_dealt, enemy_defeated, floor_cleared, floor_transition
- Hooked into special effects: dodge, armor_proc, special_effect (First Strike, Combo Master, etc.)
- Hooked into golem attacks and puzzle solving
- Updated SpireTab (tabs/SpireTab.tsx) to display activity log with colored entries
- Latest entries first, scrollable list with event type-based styling

src/components/game/tabs/SpireTab.tsx

@@ -8,7 +8,8 @@ import { ScrollArea } from '@/components/ui/scroll-area';
 import { Separator } from '@/components/ui/separator';
 import { TooltipProvider, Tooltip, TooltipContent, TooltipTrigger } from '@/components/ui/tooltip';
 import { BookOpen, ChevronUp, ChevronDown, RotateCcw, X, Mountain, Skull, Zap, Wind, Shield } from 'lucide-react';
-import type { GameStore } from '@/lib/game/types';
+import type { ActivityLogEntry } from '@/lib/game/types';
+import type { GameStore } from '@/lib/game/store';
 import { ELEMENTS, GUARDIANS, SPELLS_DEF, SKILLS_DEF, ROOM_TYPE_LABELS } from '@/lib/game/constants';
 import { GOLEMS_DEF, getGolemDamage, getGolemAttackSpeed } from '@/lib/game/data/golems';
 import { fmt, fmtDec, getFloorElement, canAffordSpellCost, getEnemyName } from '@/lib/game/store';
@@ -490,6 +491,61 @@ export function SpireTab({ store, simpleMode = false }: SpireTabProps) {
           </Card>
         )}
         
+        {/* Activity Log - Show in Spire Mode (simpleMode) */}
+        {simpleMode && (
+          <Card className="bg-gray-900/80 border-gray-700 lg:col-span-2">
+            <CardHeader className="pb-2">
+              <CardTitle className="text-amber-400 game-panel-title text-xs">Activity Log</CardTitle>
+            </CardHeader>
+            <CardContent>
+              <ScrollArea className="h-48">
+                <div className="space-y-1">
+                  {(store.activityLog || []).slice(0, 50).map((entry: ActivityLogEntry, i) => {
+                    // Style based on event type
+                    const getEventStyle = (eventType: string) => {
+                      switch (eventType) {
+                        case 'enemy_defeated':
+                        case 'floor_cleared':
+                          return 'text-green-400';
+                        case 'damage_dealt':
+                          return 'text-red-400';
+                        case 'dodge':
+                          return 'text-yellow-400';
+                        case 'armor_proc':
+                          return 'text-blue-400';
+                        case 'special_effect':
+                          return 'text-purple-400';
+                        case 'floor_transition':
+                          return 'text-cyan-400';
+                        case 'spell_cast':
+                          return 'text-amber-400';
+                        case 'golem_attack':
+                          return 'text-orange-400';
+                        case 'puzzle_solved':
+                          return 'text-pink-400';
+                        default:
+                          return 'text-gray-300';
+                      }
+                    };
+                    
+                    return (
+                      <div
+                        key={entry.id}
+                        className={`text-xs ${i === 0 ? 'text-gray-200 font-semibold' : getEventStyle(entry.eventType)}`}
+                      >
+                        {entry.message}
+                      </div>
+                    );
+                  })}
+                  {(store.activityLog || []).length === 0 && (
+                    <div className="text-xs text-gray-500 italic">No activity yet...</div>
+                  )}
+                </div>
+              </ScrollArea>
+            </CardContent>
+          </Card>
+        )}
+        
         {/* Crafting Progress (if any) - Only show in normal mode */}
         {!simpleMode && (store.designProgress || store.preparationProgress || store.applicationProgress) && (
           <Card className="bg-gray-900/80 border-cyan-600/50 lg:col-span-2">

src/lib/game/store.ts

@@ -2,7 +2,8 @@
 
 import { create } from 'zustand';
 import { persist } from 'zustand/middleware';
-import type { GameState, GameAction, StudyTarget, SpellCost, SkillUpgradeChoice, EquipmentSlot, EquipmentInstance, EnchantmentDesign, DesignEffect, AttunementState, FloorState, EnemyState, RoomType, EquipmentSpellState, ActivityLogEntry } from './types';
+import type { GameState, GameAction, StudyTarget, SpellCost, SkillUpgradeChoice, EquipmentInstance, EnchantmentDesign, DesignEffect, AttunementState, FloorState, EnemyState, RoomType, EquipmentSpellState, ActivityLogEntry } from './types';
+import type { EquipmentSlot } from './data/equipment';
 import {
   ELEMENTS,
   GUARDIANS,