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/stores/gameActions.ts

@@ -1,4 +1,5 @@
 import { computeMaxMana, computeClickMana } from '../utils';
+import type { GameCoordinatorState } from './gameStore';
 import { useUIStore } from './uiStore';
 import { usePrestigeStore } from './prestigeStore';
 import { useManaStore } from './manaStore';
@@ -6,7 +7,7 @@ import { useCombatStore } from './combatStore';
 import { computeDisciplineEffects } from '../effects/discipline-effects';
 import { useDisciplineStore } from './discipline-slice';
 
-export const createResetGame = (set: (state: any) => void, initialState: any) => () => {
+export const createResetGame = (set: (state: Partial<GameCoordinatorState>) => void, initialState: GameCoordinatorState) => () => {
   // Clear all persisted state
   if (typeof window !== 'undefined') {
     localStorage.removeItem('mana-loop-ui-storage');
@@ -34,7 +35,7 @@ export const createResetGame = (set: (state: any) => void, initialState: any) =>
 
 export const createGatherMana = () => () => {
   const prestigeState = usePrestigeStore.getState();
-  const disciplineEffects = computeDisciplineEffects(useDisciplineStore.getState() as any);
+  const disciplineEffects = computeDisciplineEffects();
 
   // Compute click mana with discipline bonuses (mana-channeling → clickManaMultiplier)
   const cm = computeClickMana(