feat: rewrite fabricator e2e test with debug bridge for store access

- Rewrite e2e/fabricator-happy-path.spec.ts from scratch:
  craft 8 gear pieces (1 per slot) via Fabricator UI,
  equip all via store bridge, verify equipment effects
- Add debugBridge.ts: exposes Zustand stores on window.__TEST__
  so Playwright can call store actions via page.evaluate()
- Import debugBridge in page.tsx as side-effect
- Uses Debug tab UI for attunement/element unlocking
- Uses store bridge for discipline XP, mana capacity, materials,
  recipe unlocking, and equipment slot assignment
- Test passes in ~3.5 minutes (155s craft time + setup)

docs/project-structure.txt

@@ -21,6 +21,7 @@ Mana-Loop/
 │   └── playtest.spec.ts
 ├── playwright-report/
 │   ├── data/
+│   │   └── 199a0ed84e7318aab410b0ec2f96ea8f6478a4da.png
 │   └── index.html
 ├── public/
 │   ├── fonts/
@@ -341,6 +342,7 @@ Mana-Loop/
 │   │   │   │   ├── crafting-initial-state.ts
 │   │   │   │   ├── craftingStore.ts
 │   │   │   │   ├── craftingStore.types.ts
+│   │   │   │   ├── debugBridge.ts
 │   │   │   │   ├── discipline-slice.ts
 │   │   │   │   ├── gameActions.ts
 │   │   │   │   ├── gameHooks.ts