Adapt a NativeConsoleMixer to the engine's NativeMatrixControl seam (#146,
ADR 0017 layer 2): the reconcile declares the native matrix set (syncMatrices), pushes
each matrix's per-source send coefficients (setMatrixPoint) + its own fader/mute/balance
(setMatrix), and links each matrix's OWN output (named by its console identity, #162)
through the crosspoint to a sink.
Extracted so it unit-tests with a fake native node.
Adapt a NativeConsoleMixer to the engine's NativeMatrixControl seam (#146, ADR 0017 layer 2): the reconcile declares the native matrix set (
syncMatrices), pushes each matrix's per-source send coefficients (setMatrixPoint) + its own fader/mute/balance (setMatrix), and links each matrix's OWN output (named by its console identity, #162) through the crosspoint to a sink. Extracted so it unit-tests with a fake native node.