v0.13.1
Fix noVNC connection failure: drop --cert flag from websockify, ensure self.pem in ensure_config
- Remove --cert/--key from websockify command (TLS handled by nginx sidecar or not at all)
- Copy self.pem in ensure_config so websockify self-signed cert survives PVC replacement
- Bump to v0.13.1, chart 0.5.1