Introduce optional Apple account-backed credits with scoped gateway access while preserving local and BYOK paths. Refresh assistant behavior, tests, privacy disclosures, docs, and the website for the 2.0 experience.
Migrate keyboard dictation to continuous Flow sessions with auto-start,
tap-to-toggle recording, 60s countdown, five-step onboarding, and App Group
IPC. Add docs/ GitHub Pages site with en/zh privacy policy for App Store compliance.
The previous code path for the keyboard preview's ASR controller
cancelled the consumer task at the exact moment it closed the
audio stream:
asrTask?.cancel() // ← kills the .final consumer
asrTask = nil
...
bufferContinuation?.finish() // tells ASR "no more audio"
The cancellation cascaded: the for-await on the events stream
exited → the AsyncStream's `continuation.onTermination` fired →
ASR.cancel() ran → producer task was marked cancelled → the
producer's `if !Task.isCancelled { yield(.final) }` guard
suppressed the .final event. Net result: nobody told the UI to
leave `.processing`, and the disc sat there forever.
Fix (4 changes):
1) `stop()` no longer cancels the consumer. The consumer task
exits naturally when the events stream finishes, sees the
`.final` event the producer still yields, and transitions
the phase out of `.processing`. This is the primary fix.
2) `start()` cancels any leftover `asrTask` at the entry point
as a safety net — covers the "user smashes the disc twice
quickly" race where a previous consumer is still draining.
3) `stop()` schedules a 3-second safety-net Task: if the ASR
pipeline never produces a `.final` (analyzer hang, system
glitch), force the phase back to `.idle` so the user isn't
stuck. Normal recordings complete well under 3 seconds, so
the timeout is only hit on the unhappy path.
4) `KeyboardPreviewSheet` adds `.onDisappear { asr.stop() }`
so closing the sheet mid-recording releases the
AVAudioSession and mic. `stop()` is idempotent (no-op on
non-recording phases), safe to call here.
State machine: `phase = .processing` now has TWO transition
paths out — the consumer receiving `.final` (fast path) and
the 3-second safety net (fallback). Both are required; the
fast path is the common case, the fallback is the
"guaranteed-progress" guarantee.
Testability: `asrTask` was `private`; relaxed to `internal` so
the regression test in
`OSGKeyboardTests/PreviewASRControllerStateTests.swift` can
install a known consumer task and assert `stop()` does not
cancel it. The class is `@MainActor` so Swift 6 isolation
rules still prevent production code outside the class from
racing on it.
Tests:
- `testStopDoesNotCancelConsumerTask` — primary fix regression.
- `testStopIsIdempotent` — `.onDisappear` after a manual stop
doesn't misbehave.
- 27/27 tests pass (25 existing + 2 new).
- BUILD SUCCEEDED.
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