feat(expansion): implement Phase 3 (Town Restoration) and Phase 4 (Cannabis Textiles)

- Added TownSquareScene and linked it with M key transition
- Integrated TownRestorationSystem with material costs and inventory
- Added locked shop items in NPCShopSystem until buildings are restored
- Updated InteractionSystem to handle ruin restoration triggers
- Expanded Cannabis farming to yield Hemp Fiber
- Added Hemp Clothing crafting recipe and procedural icons
- Refactored StatusEffectSystem and NPCShopSystem to global classes

src/systems/TownRestorationSystem.js

@@ -208,6 +208,11 @@ class TownRestorationSystem {
         // Check milestones
         this.checkMilestones();
 
+        // Update visuals in the current scene
+        if (this.scene.updateBuildingVisuals) {
+            this.scene.updateBuildingVisuals(buildingId);
+        }
+
         this.showNotification({
             title: 'Building Complete!',
             text: `✅ ${building.name} restored!`,
@@ -319,19 +324,23 @@ class TownRestorationSystem {
         return rewards[milestone] || { text: 'Bonus unlocked!' };
     }
 
-    /**
-     * Check materials
-     */
-    hasMaterials(required) {
-        // TODO: Check actual inventory
-        return true; // For now
+    hasMaterials(materials) {
+        if (!this.scene.inventorySystem) return true; // Safety fallback
+
+        for (const [item, count] of Object.entries(materials)) {
+            if (!this.scene.inventorySystem.hasItem(item, count)) {
+                return false;
+            }
+        }
+        return true;
     }
 
-    /**
-     * Consume materials
-     */
     consumeMaterials(materials) {
-        // TODO: Remove from inventory
+        if (!this.scene.inventorySystem) return;
+
+        for (const [item, count] of Object.entries(materials)) {
+            this.scene.inventorySystem.removeItem(item, count);
+        }
         console.log('📦 Materials consumed:', materials);
     }