Local-first full-duplex voice for DeepSeek Harness

Key features

• Muxiva owns the real-time pipeline: typed Frames, bounded queues, backpressure, Signals, cancellation and observability.
• The speech bridge binds only to loopback and accepts one active client.
• DSH owns the Agentsession history, model selection, tools, permissions and Web UI.
• The plugin owns only the bridgeadditive DSH UI, a versioned loopback protocol and project Node Packs.
• Neither upstream repository is patched.