Ξ-W2-T1 remediation: print master gain into the bake, derive the window from the dialed sound, reset play mode to Trigger

src/core/wire/CLAUDE.md

@@ -44,8 +44,9 @@ This directory owns two cross-artifact contracts specifically:
   namespace via `reaper_bridge::writeUsageExtState` — an entry point that is
   **prefix-guarded** (accepts only `rsusage_`-prefixed keys, refuses all others), so the
   read-only-bank invariant is structurally enforced. Direction: the instrument writes
-  usage keys; the extension reads them — the one sanctioned instrument→ext-state write,
-  a deliberate exception analogous to `assignment_request` on the other wire.
+  usage keys; the extension reads them — one of the two sanctioned instrument→ext-state
+  writes (`bake_wire`'s `rsbake_` request key is the other), a deliberate exception
+  analogous to `assignment_request` on the other wire.
   Usage records are **never cleared by the instrument at teardown** (REAPER destroys the
   plugin instance when an FX chain is set offline, including Design View's CPU-park, so a
   terminate-time clear would strip a still-live instance's record); liveness is decided