Add tests and move constants to config

src/scenes/GameScene.ts

@@ -12,6 +12,7 @@ import { findPathAStar } from "../game/pathfinding";
 import { applyAction, stepUntilPlayerTurn } from "../game/simulation";
 import { makeTestWorld } from "../game/generator";
 import { DungeonRenderer } from "./DungeonRenderer";
+import { GAME_CONFIG } from "../game/config/GameConfig";
 
 export class GameScene extends Phaser.Scene {
   private world!: World;
@@ -20,7 +21,7 @@ export class GameScene extends Phaser.Scene {
   private levelIndex = 1;
 
   private runState: RunState = {
-    stats: { maxHp: 20, hp: 20, attack: 5, defense: 2 },
+    stats: { ...GAME_CONFIG.player.initialStats },
     inventory: { gold: 0, items: [] }
   };
 
@@ -41,7 +42,7 @@ export class GameScene extends Phaser.Scene {
     this.cursors = this.input.keyboard!.createCursorKeys();
 
     // Camera
-    this.cameras.main.setZoom(2);
+    this.cameras.main.setZoom(GAME_CONFIG.rendering.cameraZoom);
 
     // Initialize Sub-systems
     this.dungeonRenderer = new DungeonRenderer(this);