Two follow-ups after the iOS Rust build went green at 5de6ecc:
1. cpal-side framing constants (SAMPLE_RATE / FRAME_SAMPLES /
MAX_OPUS_FRAME) are dead code in the current iOS commit
because the VPIO callbacks are still no-op stubs and don't
reach the constants yet (commits 3 + 4 will). They are
genuinely live on every other platform via the cpal capture
pipeline. Mark each with #[allow(dead_code)] and add a
comment pointing at the commits that will reactivate them on
iOS, instead of cfg-gating per-platform (the constants are
framing invariants of the engine itself, not per-backend
details).
2. ios/Podfile.lock regenerated on the Mac via 'pod install'
to register package_info_plus (0.4.5) which landed in
97a6ba6. Without this regen the Xcode build fails with
'The sandbox is not in sync with the Podfile.lock' because
Xcode's CocoaPods integration check sees a new plugin in
pubspec.yaml that has no matching Pod entry. Five pods now
in the lockfile: Flutter, audio_session, chanora_bridge,
connectivity_plus, package_info_plus.
Build counter 61 -> 62 — the About dialog will display
v1.0.0-rc.8+62 so the user can confirm the build under test
matches this commit (the previous build said +61).