Add capacity display to inventory in all scenes

- Updated inventory display format from "Fuel: 80" to "Fuel: 80/100"
- Shows max capacity for all resources:
  - Fuel: /100
  - Whale Oil: /50 (cargo hold capacity)
  - Penguins: /20
- Applied to HuntingScene, ShipDeckScene, and MapScene
- Players can now see remaining capacity at a glance

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/scenes/HuntingScene.js

@@ -218,8 +218,8 @@ export default class HuntingScene extends Phaser.Scene {
 
     updateStats() {
         this.statsText.setText([
-            `Fuel: ${this.inventory.fuel}`,
-            `Oil: ${this.inventory.whaleOil}`,
+            `Fuel: ${this.inventory.fuel}/100`,
+            `Oil: ${this.inventory.whaleOil}/50`,
             `Whales: ${this.whalesHunted}`
         ]);
     }

src/scenes/MapScene.js

@@ -128,9 +128,9 @@ export default class MapScene extends Phaser.Scene {
     updateInventoryDisplay() {
         this.inventoryText.setText([
             'Inventory:',
-            `Fuel: ${this.inventory.fuel}`,
-            `Oil: ${this.inventory.whaleOil}`,
-            `Penguins: ${this.inventory.penguins}`
+            `Fuel: ${this.inventory.fuel}/100`,
+            `Oil: ${this.inventory.whaleOil}/50`,
+            `Penguins: ${this.inventory.penguins}/20`
         ]);
     }
 

src/scenes/ShipDeckScene.js

@@ -132,9 +132,9 @@ export default class ShipDeckScene extends Phaser.Scene {
     updateInventoryDisplay() {
         this.inventoryText.setText([
             'Inventory:',
-            `Fuel: ${this.inventory.fuel}`,
-            `Oil: ${this.inventory.whaleOil}`,
-            `Penguins: ${this.inventory.penguins}`
+            `Fuel: ${this.inventory.fuel}/100`,
+            `Oil: ${this.inventory.whaleOil}/50`,
+            `Penguins: ${this.inventory.penguins}/20`
         ]);
     }