feat(sasch40): improve Act III, add state persistence and fix portraits

- Fix character portrait crops and version assets to portrait_v2, ensuring correct identities (resolving Nat/Verena mismatch)
- Update Schankraum scene image and configure Nginx cache-control to prevent stale asset caching
- Make secret beer tap completely invisible in tavern until clicked
- Reposition room hotspots in Act III to eliminate overlapping click targets
- Add exit button [✕] to Bavarian Gstanzl duel minigame
- Implement localStorage persistence in gameStore to maintain progress across page reloads
- Enable clean game state and storage reset when clicking "Nochmal spielen"
- Expand automated playtest script to cover Nat dialogue, duel exit, reload persistence, and game restart

k8s/openclaw/AGENTS.md

@@ -82,9 +82,12 @@ OpenClaw connects to three foundational Git repositories:
 
 ---
 
-## 🚨 Troubleshooting & Live Verification
+## 🚨 Troubleshooting & Incident Playbook
 
-If the agent is offline or failing:
+> [!IMPORTANT]
+> **Mandatory Bug & Incident Documentation**: Whenever a bug, outage, schema error, or operational regression is fixed in OpenClaw, **always document the incident in [TROUBLESHOOTING.md](./TROUBLESHOOTING.md)** with symptom, root cause, resolution, and how to avoid recurrence.
+
+For known issues, resolved bugs, and specific failure playbooks, consult [TROUBLESHOOTING.md](./TROUBLESHOOTING.md).
 
 ### 1. Verify Deployment Health
 Ensure that the `OpenClawInstance` is successfully reconciled: