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/lib/game/crafting-apply.ts

@@ -4,7 +4,7 @@
 import type { EquipmentInstance, AppliedEnchantment, EnchantmentDesign, ApplicationProgress } from './types';
 import { calculateApplicationTime, calculateApplicationManaPerHour } from './crafting-utils';
 import { hasSpecial, SPECIAL_EFFECTS } from './effects/special-effects';
-import { computeEffects } from './effects/upgrade-effects';
+import type { ComputedEffects } from './effects/upgrade-effects.types';
 import type { AttunementState } from './types';
 import { calculateEnchantingXP, getAttunementXPForLevel, MAX_ATTUNEMENT_LEVEL } from './data/attunements';
 import { ENCHANTMENT_EFFECTS } from './data/enchantment-effects';
@@ -91,7 +91,7 @@ export function calculateApplicationTick(
   required: number,
   currentManaSpent: number,
   manaPerTick: number,
-  computedEffects: any
+  computedEffects: ComputedEffects
 ): ApplicationTickResult {
   let progress = currentProgress + 0.04;
   let manaSpent = currentManaSpent + manaPerTick;
@@ -131,7 +131,7 @@ export function calculateApplicationTick(
 export function applyEnchantments(
   instance: EquipmentInstance,
   design: EnchantmentDesign,
-  computedEffects: any
+  computedEffects: ComputedEffects
 ): {
   updatedInstance: EquipmentInstance;
   xpGained: number;