cleanup: delete computed-stats.ts shim and store/index.ts

- Delete src/lib/game/computed-stats.ts (root-level re-export shim)
- Delete src/lib/game/store/index.ts (nothing imports from it)
- Update __tests__/computed-stats.test.ts to import from ../utils instead
- Clean up craftingStore.ts imports (remove unused useGameStore, CraftingApply)

Typecheck and lint pass (pre-existing DisciplinesTab.tsx errors unchanged)

src/components/game/StatsTab/ElementStatsSection.tsx

@@ -4,28 +4,17 @@ import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { Separator } from '@/components/ui/separator';
 import { FlaskConical } from 'lucide-react';
 import { ELEMENTS } from '@/lib/game/constants';
-import { getTierMultiplier } from '@/lib/game/skill-evolution';
 import { fmt, fmtDec } from '@/lib/game/stores';
-import { useSkillStore, usePrestigeStore, useManaStore } from '@/lib/game/stores';
+import { usePrestigeStore, useManaStore } from '@/lib/game/stores';
 
 interface ElementStatsSectionProps {
   elemMax: number;
 }
 
 export function ElementStatsSection({ elemMax }: ElementStatsSectionProps) {
-  const skills = useSkillStore((s) => s.skills);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
   const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
   const elements = useManaStore((s) => s.elements);
-  
-  const getElemAttunementBonus = () => {
-    const ea = skillTiers?.elemAttune || 1;
-    const tieredSkillId = ea > 1 ? `elemAttune_t${ea}` : 'elemAttune';
-    const level = skills[tieredSkillId] || skills.elemAttune || 0;
-    const tierMult = getTierMultiplier(tieredSkillId);
-    return level * 50 * tierMult;
-  };
-  
+
   return (
     <Card className="bg-[var(--bg-panel)] border-[var(--border-subtle)]">
       <CardHeader className="pb-2">
@@ -41,10 +30,6 @@ export function ElementStatsSection({ elemMax }: ElementStatsSectionProps) {
               <span style={{ color: 'var(--text-muted)' }}>Element Capacity:</span>
               <span style={{ color: 'var(--color-success)' }}>{elemMax}</span>
             </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Elem. Attunement Bonus:</span>
-              <span style={{ color: 'var(--color-success)' }}>+{getElemAttunementBonus()}</span>
-            </div>
             <div className="flex justify-between text-sm">
               <span style={{ color: 'var(--text-muted)' }}>Prestige Attunement:</span>
               <span style={{ color: 'var(--color-success)' }}>+{(prestigeUpgrades.elementalAttune || 0) * 25}</span>
@@ -55,10 +40,6 @@ export function ElementStatsSection({ elemMax }: ElementStatsSectionProps) {
               <span style={{ color: 'var(--text-muted)' }}>Unlocked Elements:</span>
               <span style={{ color: 'var(--color-success)' }}>{Object.values(elements || {}).filter((e: any) => e.unlocked).length} / {Object.keys(ELEMENTS).length}</span>
             </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Elem. Crafting Bonus:</span>
-              <span style={{ color: 'var(--color-success)' }}>×{fmtDec(1 + (skills.elemCrafting || 0) * 0.25, 2)}</span>
-            </div>
           </div>
         </div>
         <Separator className="bg-[var(--border-subtle)] my-3" />
@@ -79,4 +60,4 @@ export function ElementStatsSection({ elemMax }: ElementStatsSectionProps) {
       </CardContent>
     </Card>
   );
-}
+}