refactor: remove memory slot system and Memories section from PrestigeTab

- Remove deepMemory prestige upgrade from constants/prestige.ts
- Remove Memory interface from types.ts
- Remove memorySlots, memories, addMemory, removeMemory, clearMemories from prestigeStore.ts
- Remove deepMemory/memory references from gameLoopActions.ts
- Remove MemoriesCard component and its usage from PrestigeTab.tsx
- Remove memorySlots display from LoopStatsSection.tsx
- Update tests: store-actions-combat-prestige.test.ts, PrestigeTab.test.ts, tick-integration.test.ts

The memory slot system was fully wired but had no gameplay mechanic — addMemory()
was never called outside tests. This removes dead code across 9 files.

src/lib/game/stores/gameLoopActions.ts

@@ -39,8 +39,6 @@ export const createStartNewLoop = (set: (state: Partial<GameCoordinatorState>) =
   usePrestigeStore.getState().resetPrestigeForNewLoop(
     total,
     pu,
-    prestigeState.memories,
-    3 + (pu.deepMemory || 0)
   );
   usePrestigeStore.getState().incrementLoopCount();
 

src/lib/game/stores/prestigeStore.ts

@@ -1,10 +1,9 @@
 // ─── Prestige Store ───────────────────────────────────────────────────────────
-// Handles insight, prestige upgrades, memories, loops, pacts
+// Handles insight, prestige upgrades, loops, pacts
 
 import { create } from 'zustand';
 import { persist } from 'zustand/middleware';
 import { createSafeStorage } from '../utils/safe-persist';
-import type { Memory } from '../types';
 import { PRESTIGE_DEF } from '../constants';
 import { getGuardianForFloor } from '../data/guardian-encounters';
 import { ok, okVoid, fail, ErrorCode } from '../utils/result';
@@ -23,12 +22,8 @@ export interface PrestigeState {
 
   // Prestige upgrades
   prestigeUpgrades: Record<string, number>;
-  memorySlots: number;
   pactSlots: number;
 
-  // Memories (skills preserved across loops)
-  memories: Memory[];
-
   // Guardian pacts
   defeatedGuardians: number[];
   signedPacts: number[];
@@ -46,9 +41,6 @@ export interface PrestigeState {
 
 export interface PrestigeActions {
   doPrestige: (id: string) => Result<void>;
-  addMemory: (memory: Memory) => void;
-  removeMemory: (skillId: string) => void;
-  clearMemories: () => void;
   startPactRitual: (floor: number, rawMana: number) => Result<void>;
   cancelPactRitual: () => void;
   completePactRitual: (addLog: (msg: string) => void) => void;
@@ -65,8 +57,6 @@ export interface PrestigeActions {
   resetPrestigeForNewLoop: (
     totalInsight: number,
     prestigeUpgrades: Record<string, number>,
-    memories: Memory[],
-    memorySlots: number
   ) => void;
 
   // Loop management
@@ -98,9 +88,7 @@ const initialState: PrestigeState = {
   totalInsight: 0,
   loopInsight: 0,
   prestigeUpgrades: {},
-  memorySlots: 3,
   pactSlots: 1,
-  memories: [],
   defeatedGuardians: [],
   signedPacts: [],
   signedPactDetails: {},
@@ -126,30 +114,11 @@ export const usePrestigeStore = create<PrestigeStore>()(
         set({
           insight: state.insight - pd.cost,
           prestigeUpgrades: newPU,
-          memorySlots: id === 'deepMemory' ? state.memorySlots + 1 : state.memorySlots,
           pactSlots: id === 'pactBinding' ? state.pactSlots + 1 : state.pactSlots,
         });
         return okVoid();
       },
 
-      addMemory: (memory: Memory) => {
-        const state = get();
-        if (state.memories.length >= state.memorySlots) return;
-        if (state.memories.some(m => m.skillId === memory.skillId)) return;
-
-        set({ memories: [...state.memories, memory] });
-      },
-
-      removeMemory: (skillId: string) => {
-        set((state) => ({
-          memories: state.memories.filter(m => m.skillId !== skillId),
-        }));
-      },
-
-      clearMemories: () => {
-        set({ memories: [] });
-      },
-
       startPactRitual: (floor: number, rawMana: number) => {
         const state = get();
         const guardian = getGuardianForFloor(floor);
@@ -242,14 +211,10 @@ export const usePrestigeStore = create<PrestigeStore>()(
       resetPrestigeForNewLoop: (
         totalInsight: number,
         prestigeUpgrades: Record<string, number>,
-        memories: Memory[],
-        memorySlots: number
       ) => {
         set({
           insight: totalInsight,
           prestigeUpgrades,
-          memories,
-          memorySlots,
           // Reset loop-specific state
           defeatedGuardians: [],
           signedPacts: [],
@@ -304,9 +269,7 @@ export const usePrestigeStore = create<PrestigeStore>()(
         totalInsight: state.totalInsight,
         loopInsight: state.loopInsight,
         prestigeUpgrades: state.prestigeUpgrades,
-        memorySlots: state.memorySlots,
         pactSlots: state.pactSlots,
-        memories: state.memories,
         defeatedGuardians: state.defeatedGuardians,
         signedPacts: state.signedPacts,
         signedPactDetails: state.signedPactDetails,