Fix scaling and controls for desktop displays

- Remove max scale bounds to support unlimited display sizes (4K, 8K, ultrawide)
- Remove duplicate width/height from scale config to fix desktop scaling
- Fix HuntingScene to default to mouse mode on all platforms (was incorrectly starting in keyboard mode on desktop)

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

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

src/main.js

@@ -22,18 +22,11 @@ const config = {
     scale: {
         mode: Phaser.Scale.FIT,
         autoCenter: Phaser.Scale.CENTER_BOTH,
-        width: 800,
-        height: 600,
         min: {
             width: 320,
             height: 240
         },
-        max: {
-            width: 1920,
-            height: 1080
-        },
-        fullscreenTarget: 'game-container',
-        expandParent: false
+        fullscreenTarget: 'game-container'
     }
 };