fix: add missing LootInventory type and lootInventory state

- Added LootInventory interface to types.ts with materials and blueprints
- Added lootInventory field to GameState interface
- Added default lootInventory state to makeInitial() in store.ts
- Added lootInventory to persist partialize function
- Fixes prerender error: 'Cannot read properties of undefined (reading materials)'

src/lib/game/store.ts

@@ -504,6 +504,12 @@ function makeInitial(overrides: Partial<GameState> = {}): GameState {
 
     blueprints: {},
 
+    // Loot inventory
+    lootInventory: {
+      materials: {},
+      blueprints: [],
+    },
+
     schedule: [],
     autoSchedule: false,
     studyQueue: [],
@@ -1707,6 +1713,8 @@ export const useGameStore = create<GameStore>()(
         designProgress: state.designProgress,
         preparationProgress: state.preparationProgress,
         applicationProgress: state.applicationProgress,
+        // Loot inventory
+        lootInventory: state.lootInventory,
       }),
     }
   )

src/lib/game/types.ts

@@ -252,6 +252,12 @@ export interface BlueprintDef {
   learned: boolean;
 }
 
+// Loot inventory for materials and blueprints
+export interface LootInventory {
+  materials: Record<string, number>;  // materialId -> count
+  blueprints: string[];               // blueprint IDs discovered
+}
+
 export type GameAction = 'meditate' | 'climb' | 'study' | 'craft' | 'repair' | 'convert' | 'design' | 'prepare' | 'enchant';
 
 export interface ScheduleBlock {
@@ -342,6 +348,9 @@ export interface GameState {
   // Blueprints
   blueprints: Record<string, BlueprintDef>;
 
+  // Loot Inventory
+  lootInventory: LootInventory;
+
   // Schedule
   schedule: ScheduleBlock[];
   autoSchedule: boolean;