Reduce perceived latency from key release to final text:
- Adaptive chunking: 2.5s first chunk + 5s follow-ups so short
utterances start on-device recognition while still recording.
- Session-level ASR warmup and audio-format cache reuse to remove
per-utterance cold-start of SpeechAnalyzer.
- Mirror live pipelined partials to the keyboard transcript line via
a new flow.transcriptionPartial App Group key + Darwin ping.
Also commits the accumulated custom language model, Flow session,
keyboard extension restructure, and Xiaomi MiMo provider work in
progress on this branch.
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.
- AppGroup.defaults: in DEBUG, missing App Group is a hard fatalError
with a precise remediation message (was a soft print + .standard
fallback, which desynced the keyboard extension from the main App).
Release keeps the fallback + NSLog so end-users still get a usable app.
- KeyboardViewController.loadPersistedLocale now prints a masked DEBUG
view of the live App Group config (provider, baseURL, masked key,
model, mode, locale) so the extension's view is visible in the
device console.
- KeyboardViewController.handleFinalTranscript now routes by typed error:
noAPIKey → red error '未配置 API Key · 请在主 App 设置中填写'
http 401 → red error 'API Key 无效 (401) · 请检查主 App 设置'
http 429 → red error 'API 限流 (429) · 请稍后再试'
other → insert raw transcript + generic error badge
- APISettingsCard gains a 'Test connection' button that runs a single
client.polish('ping') round-trip and surfaces the typed result inline.
- PolishingService.timeout raised 12s → 15s to match LLMClient.request
timeout (was racing and discarding successful responses in 12–15s).
- Tests: 4 new cases (HTTP 429, transport timeout, App Group cross-process,
AppGroupStore→LLMClient noAPIKey). All 8 tests pass on iPhone 16e sim.
xcodebuild iOS Simulator: SUCCEEDED
xcodebuild test: 8/8 passed
This is a major rewrite of OpenLessKeyboard, renamed to OSGKeyboard
and rebuilt end-to-end. 59 files changed (+3205/-1550).
Architecture
------------
- Rename project, targets, directories from OpenLess* to OSGKeyboard*
(OpenLess / OpenLessKeyboard / OpenLessShared / OpenLessTests).
- AudioCaptureService rewritten as @unchecked Sendable class with
OSAllocatedUnfairLock instead of an actor, so it survives Swift 6
strict-concurrency checks while still serialising engine + converter
state correctly.
- Single design system (Palette / Spacing / Radius / TypeStyle /
Motion) lifted into OSGKeyboardShared so the host app and the
keyboard extension stay in lock-step.
Push-to-talk — first-principles fix
-----------------------------------
- App Group + audio-input entitlements were stripped by Xcode's
Automatic Signing. They are now declared in project.yml so
'xcodegen generate' re-emits them every time. iOS Developer
Account is untouched; only the App Group capability was added.
- State machine uses a real stored `phase` (was a derived shim
that locked out every press after the first because
recordStream was never nilled after the pipeline finished).
- Microphone permission is requested inside pressBegan (async
Task) so the press flow optimistically enters .recording;
permission denial surfaces a short error and returns to idle.
- Replaced LongPressGesture(0.15s) with a DragGesture +
TapGesture pair separated by pressArmed, so a single tap no
longer fires both onPressBegan and onTap simultaneously.
- Real RMS / peak level meter from the AVAudioEngine tap (was a
pseudo-random walk); the visible waveform is now driven by
actual audio.
- SFSpeechRecognizer(locale:) with selectable ASR locales
(auto / zh-Hans / zh-Hant / en-US / ja-JP / ko-KR) for
first-class Chinese / English / Japanese / Korean dictation,
with on-device recognition when supported.
- AVAudioSession now deactivates on stop so other apps' audio
routing is restored.
Keyboard UI — Typeless-inspired layout
---------------------------------------
- Hero area is 280 pt with a 96 pt record disc, breathing outer
ring, and a 12-bar waveform driven by the real RMS.
- inputView.allowsSelfSizing + a heightAnchor constraint so iOS
no longer crops the keyboard under the Spotlight bar / home
indicator.
- Top bar: mode chip (Off / 转写 / 润色) + locale chip
(Auto / 简体 / 繁體 / EN / 日 / 한) + status badge + ⚙.
- Bottom bar: globe / delete / 空格 / return — all 40 pt and
balanced.
- RecordButton onPressEnded is now safe to fire from a quick
press; pressArmed prevents double-firing.
LLM / Polishing
---------------
- LLMClient: stopped leaking the server response body in errors
(server body is now logged at debug, never surfaced to UI);
added a dedicated .rateLimited case for 429.
- PolishingService timeout 8s → 12s to accommodate slower
domestic LLM providers.
- AppGroupStore.defaultSystemPrompt is now provider-aware
(Chinese for zhipu/moonshot/qwen/deepseek, English otherwise).
Onboarding & Settings
---------------------
- Re-themed OnboardingView / HomeView / SettingsView on the
new design system.
- ProviderPickerSection now shows 6 providers (OpenAI, DeepSeek,
Qwen DashScope, 智谱 GLM, 月之暗面 Moonshot, Custom) with
blurb + selected accent.
- PickerRow for Mode and ASR locale; System Prompt editor with
reset-to-default.
- API settings page "Get an API key" used SwiftUI Link, which
has a hit-test bug on iOS 18 that ate gestures from adjacent
TextFields (manifested as "typing jumps to a website"). It is
now an explicit Button + contentShape + .submitLabel(.done) on
the fields.
Polish & tests
--------------
- LLMClientTests: 4 unit tests passing (ProviderConfig
persistence + OpenAI request/response + HTTP error + missing
key); test App Group renamed to the correct identifier.
- ProviderConfig.apply now captures the previous provider id
*before* mutating, so switching providers actually resets the
system prompt to the new default.
Build
-----
- Swift 6 strict concurrency, iOS 18.0 deployment target.
- Tested on Xcode 26 + iPhone 17 Pro simulator. A real device on
iOS 27 beta aborts with __abort_with_payload (dispatch
library ABI mismatch); use an iOS 18 real device or the
iOS 26 simulator for now.
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