Fix Neon Vortex button input and add Jellyfin WAL mode

- Comment out CORS headers in nginx.conf to fix button input blocking
- Add WAL enable job for Jellyfin to resolve database locking issues
- Include comprehensive troubleshooting documentation

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

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

jellyfin-wal-enable.yaml

@@ -0,0 +1,30 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: jellyfin-enable-wal
+  namespace: media
+spec:
+  ttlSecondsAfterFinished: 600
+  template:
+    spec:
+      restartPolicy: Never
+      containers:
+      - name: enable-wal
+        image: alpine:latest
+        command:
+        - sh
+        - -c
+        - |
+          apk add --no-cache sqlite
+          echo "Enabling WAL mode on jellyfin.db..."
+          sqlite3 /config/data/jellyfin.db "PRAGMA journal_mode=WAL;"
+          echo "Verifying WAL mode..."
+          sqlite3 /config/data/jellyfin.db "PRAGMA journal_mode;"
+          echo "WAL mode enabled successfully!"
+        volumeMounts:
+        - name: jellyfin-data
+          mountPath: /config
+      volumes:
+      - name: jellyfin-data
+        persistentVolumeClaim:
+          claimName: jellyfin-config