Replaces the macOS PTT backend's query_permission() stub (which had
returned Undetermined unconditionally) with a real IOKit call:
extern "C" { fn IOHIDCheckAccess(request_type: u32) -> u32; }
IOHIDCheckAccess(kIOHIDRequestTypeListenEvent = 1)
Returns Granted (0), Denied (1), or Unknown (2). The existing 1.5 s
re-query worker now drives real descriptor transitions when the user
grants or revokes Input Monitoring in System Settings: the watch
sender republishes the descriptor, ChanoraSession forwards
BridgeEvent::PttCapability, and the Flutter capability badge updates
within ~1.5 s without an app restart.
Verified live on the M1 Mac:
rustc /tmp/check_perm.rs && ./check_perm
IOHIDCheckAccess(ListenEvent) = 2 (Unknown)
This is the expected initial state on a fresh box where Chanora has
not yet attempted CGEventTapCreate; once the next commit lands the
event-tap worker, the macOS Input Monitoring prompt will fire on
first audio start and the value transitions to Granted/Denied.
Tests: chanora_audio 28 / 0 / 0 on macOS (Linux had 32; the 4-test
delta is the Linux-only portal probe tests). The existing 7 macOS
backend unit tests still cover the descriptor builder + state
machine purely; they don't exercise the live IOKit call (which
would need a TCC-aware test harness).
SDD-085 reference: macOS Event Tap backend / L2 / L3 capability;
SRS-198 honest capability advertising.
EdisonJwa
ade50488d9