refactor: eliminate as any type casts across 18 source files

- Fix computeDisciplineEffects() to not require GameState parameter
- Fix getUnifiedEffects() to accept proper partial state type
- Replace upgradeEffects as any with proper UnifiedEffects type
- Replace explicit : any annotations with proper types (ComputedEffects, DesignProgress, SpellDef, etc.)
- Fix activity-log.ts eventType casting
- Fix crafting-design.ts computedEffects and designProgress types
- Fix page.tsx grimoire spell rendering with proper SpellDef property names
- Fix StatsTab ManaStatsSection with proper ManaStatsEffects interface
- Remove unused imports (useDisciplineStore from page.tsx, LeftPanel.tsx)

Remaining: 1 as any in craftingStore.ts (pre-existing CraftingStore/GameState architectural mismatch)

src/components/game/tabs/SpireCombatPage/SpireCombatPage.tsx

@@ -78,8 +78,7 @@ export function SpireCombatPage() {
   const equipmentInstances = useCraftingStore((s) => s.equipmentInstances);
 
   // Discipline effects
-  const disciplineStoreState = useDisciplineStore();
-  const disciplineEffects = computeDisciplineEffects(disciplineStoreState as any);
+  const disciplineEffects = computeDisciplineEffects();
 
   // Compute derived stats
   const upgradeEffects = getUnifiedEffects({
@@ -94,7 +93,7 @@ export function SpireCombatPage() {
     prestigeUpgrades,
     skillUpgrades: {},
     skillTiers: {},
-  }, upgradeEffects as any, disciplineEffects);
+  }, upgradeEffects, disciplineEffects);
 
   const baseRegen = computeRegen({
     skills: {},
@@ -102,7 +101,7 @@ export function SpireCombatPage() {
     skillUpgrades: {},
     skillTiers: {},
     attunements: {},
-  }, upgradeEffects as any, disciplineEffects);
+  }, upgradeEffects, disciplineEffects);
 
   // Total rooms for current floor
   const totalRooms = useMemo(() => getRoomsForFloor(currentFloor), [currentFloor]);