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/gameLoopActions.ts

@@ -1,4 +1,5 @@
 import { calcInsight, getFloorMaxHP } from '../utils';
+import type { GameCoordinatorState } from './gameStore';
 import { makeInitialSpells } from './combatStore';
 import { SPELLS_DEF } from '../constants';
 import { useUIStore } from './uiStore';
@@ -8,12 +9,12 @@ import { useCombatStore } from './combatStore';
 import { computeDisciplineEffects } from '../effects/discipline-effects';
 import { useDisciplineStore } from './discipline-slice';
 
-export const createStartNewLoop = (set: (state: any) => void) => () => {
+export const createStartNewLoop = (set: (state: Partial<GameCoordinatorState>) => void) => () => {
   const prestigeState = usePrestigeStore.getState();
   const combatState = useCombatStore.getState();
   const manaState = useManaStore.getState();
 
-  const disciplineEffects = computeDisciplineEffects(useDisciplineStore.getState() as any);
+  const disciplineEffects = computeDisciplineEffects();
   const insightGained = prestigeState.loopInsight || calcInsight({
     maxFloorReached: combatState.maxFloorReached,
     totalManaGathered: manaState.totalManaGathered,