phase 6: scene flow — Cradle, Death, Fractal scenes + run integration

- Add CradleScene (Spore Cradle): school selection UI with spore particles
- Add DeathScene: body decomposes into real elements with labels
- Add FractalScene: WebGL Mandelbrot/Julia shader + canvas fallback
- Integrate RunState into GameScene: phase management, escalation, crisis
- Give starting kit from chosen school on run start
- Player death triggers DeathScene → FractalScene → CradleScene loop
- Track element/creature discoveries during gameplay
- Chemical Plague crisis: tinted overlay, player damage, neutralization
- BootScene loads meta from IndexedDB, goes to CradleScene
- Update version to v0.6.0

Co-authored-by: Cursor <cursoragent@cursor.com>

src/scenes/BootScene.ts

@@ -1,4 +1,6 @@
 import Phaser from 'phaser';
+import { loadMetaState } from '../run/persistence';
+import { createMetaState } from '../run/meta';
 
 export class BootScene extends Phaser.Scene {
   constructor() {
@@ -30,7 +32,7 @@ export class BootScene extends Phaser.Scene {
 
     // Version
     this.add
-      .text(cx, cy + 80, 'v0.5.0 — Phase 5: Creatures & Ecology', {
+      .text(cx, cy + 80, 'v0.6.0 — Phase 6: Run Cycle', {
         fontSize: '12px',
         color: '#333333',
         fontFamily: 'monospace',
@@ -56,7 +58,15 @@ export class BootScene extends Phaser.Scene {
     });
 
     this.input.once('pointerdown', () => {
-      this.scene.start('GameScene');
+      // Load meta-progression from IndexedDB, then go to Cradle
+      loadMetaState()
+        .then(meta => {
+          this.scene.start('CradleScene', { meta });
+        })
+        .catch(() => {
+          // Fallback to fresh meta if persistence fails
+          this.scene.start('CradleScene', { meta: createMetaState() });
+        });
     });
   }
 }