OpenClaw voice-call media stream validated streams after upgrade, which could allow pre-start unauthenticated sockets to increase resource pressure

Summary @openclaw/voice-call and the bundled copy shipped in openclaw accepted media-stream WebSocket upgrades before stream validation. In reachable deployments, unauthenticated pre-start sockets could be held open and increase resource pressure. Affected Packages / Versions - openclaw npm:...