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/lib/game/stores/combat-actions.ts

@@ -10,7 +10,6 @@ import { usePrestigeStore } from './prestigeStore';
 export function processCombatTick(
   get: () => CombatState,
   set: (state: Partial<CombatState>) => void,
-  skills: Record<string, number>,
   rawMana: number,
   elements: Record<string, { current: number; max: number; unlocked: boolean }>,
   maxMana: number,
@@ -36,9 +35,8 @@ export function processCombatTick(
     return { rawMana, elements, logMessages, totalManaGathered };
   }
 
-  // Calculate cast speed
-  const baseAttackSpeed = 1 + (skills.quickCast || 0) * 0.05;
-  const totalAttackSpeed = baseAttackSpeed * attackSpeedMult;
+  // Calculate cast speed (no skill bonus)
+  const totalAttackSpeed = attackSpeedMult;
   const spellCastSpeed = spellDef.castSpeed || 1;
   const progressPerTick = HOURS_PER_TICK * spellCastSpeed * totalAttackSpeed;
 
@@ -58,12 +56,12 @@ export function processCombatTick(
     // Calculate base damage
     const floorElement = getFloorElement(currentFloor);
     const damage = calcDamage(
-      { skills, signedPacts: usePrestigeStore.getState().signedPacts },
+      { skills: {}, signedPacts: usePrestigeStore.getState().signedPacts },
       spellId,
       floorElement,
     );
 
-    // Let gameStore apply damage modifiers (executioner, berserker, spell echo)
+    // Let gameStore apply damage modifiers (executioner, berserker)
     const result = onDamageDealt(damage);
     rawMana = result.rawMana;
     elements = result.elements;
@@ -114,7 +112,7 @@ export function processCombatTick(
       // Calculate damage
       const eFloorElement = getFloorElement(currentFloor);
       const eDamage = calcDamage(
-        { skills, signedPacts: usePrestigeStore.getState().signedPacts },
+        { skills: {}, signedPacts: usePrestigeStore.getState().signedPacts },
         eSpell.spellId,
         eFloorElement,
       );
@@ -151,11 +149,11 @@ export function makeInitialSpells(spellsToKeep: string[] = []): Record<string, S
   const startSpells: Record<string, SpellState> = {
     manaBolt: { learned: true, level: 1, studyProgress: 0 },
   };
-  
+
   // Add kept spells
   for (const spellId of spellsToKeep) {
     startSpells[spellId] = { learned: true, level: 1, studyProgress: 0 };
   }
-  
+
   return startSpells;
 }