dudu MVP：五端语音输入法初始提交

- server：Go 网关（WS 流式识别中继/计费配额/微信登录支付 mock/反馈/埋点），gummy provider 已真实联调 - desktop：Tauri 2（全局快捷键 push-to-talk/浮层/托盘/设置/登录购买/反馈/首启引导） - android：Compose 主 App + IME（键盘内录音直传） - ios：App + 键盘扩展（1A spike 实证键盘内不可录音，走 deep link 听写） - design/design-pipeline：设计系统 + token 导出 iOS/Android 主题 - doc：前后端设计文档（HTML）；web：官网宣传页；todo：任务看板 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-12 00:38:37 +08:00
commit 40760aa884
252 changed files with 40789 additions and 0 deletions
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+// 1A spike 核心：键盘扩展内尝试 AVAudioEngine 录音，结果直接显示在键盘上。
+// 判定标准：
+//   ✅ engine.start() 成功且 1 秒内收到音频帧 → 键盘内录音可行（主路径成立）
+//   ❌ setActive/start 抛错或 0 帧 → 不可行，走 deep link 降级方案（14D）
+import AVFoundation
+import UIKit
+
+class KeyboardViewController: UIInputViewController {
+    private let resultLabel = UILabel()
+    private let engine = AVAudioEngine()
+    private var frames: UInt32 = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        view.backgroundColor = .systemGray5
+
+        let stack = UIStackView()
+        stack.axis = .vertical
+        stack.spacing = 10
+        stack.translatesAutoresizingMaskIntoConstraints = false
+        view.addSubview(stack)
+        NSLayoutConstraint.activate([
+            stack.centerXAnchor.constraint(equalTo: view.centerXAnchor),
+            stack.topAnchor.constraint(equalTo: view.topAnchor, constant: 16),
+            stack.widthAnchor.constraint(equalTo: view.widthAnchor, constant: -32),
+            view.heightAnchor.constraint(greaterThanOrEqualToConstant: 220),
+        ])
+
+        let info = UILabel()
+        info.text = "完全访问：\(hasFullAccess ? "已开启" : "未开启（请先开启）")"
+        info.font = .systemFont(ofSize: 14)
+        stack.addArrangedSubview(info)
+
+        let btn = UIButton(type: .system)
+        btn.setTitle("测试键盘内录音（1 秒）", for: .normal)
+        btn.titleLabel?.font = .boldSystemFont(ofSize: 17)
+        btn.addTarget(self, action: #selector(testMic), for: .touchUpInside)
+        stack.addArrangedSubview(btn)
+
+        resultLabel.text = "结果：未测试"
+        resultLabel.font = .monospacedSystemFont(ofSize: 14, weight: .regular)
+        resultLabel.numberOfLines = 0
+        stack.addArrangedSubview(resultLabel)
+
+        let next = UIButton(type: .system)
+        next.setTitle("🌐 切回系统键盘", for: .normal)
+        next.addTarget(self, action: #selector(handleInputModeList(from:with:)), for: .allTouchEvents)
+        stack.addArrangedSubview(next)
+    }
+
+    @objc private func testMic() {
+        frames = 0
+        resultLabel.text = "结果：测试中…"
+        // 键盘扩展无法弹权限框；权限继承容器 App / 系统设置中的麦克风授权
+        do {
+            let session = AVAudioSession.sharedInstance()
+            try session.setCategory(.playAndRecord, mode: .measurement, options: [.mixWithOthers])
+            try session.setActive(true)
+            engine.inputNode.removeTap(onBus: 0)
+            engine.inputNode.installTap(onBus: 0, bufferSize: 1024, format: nil) { [weak self] buf, _ in
+                self?.frames += buf.frameLength
+            }
+            try engine.start()
+            DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) { [weak self] in
+                guard let self else { return }
+                self.engine.stop()
+                self.engine.inputNode.removeTap(onBus: 0)
+                let permission = AVAudioApplication.shared.recordPermission
+                self.resultLabel.text = self.frames > 0
+                    ? "结果：✅ 收到 \(self.frames) 帧 — 键盘内录音可行"
+                    : "结果：❌ 0 帧（权限态:\(permission.rawValue)）— 需走降级方案"
+            }
+        } catch {
+            resultLabel.text = "结果：❌ \(error.localizedDescription) — 需走降级方案"
+        }
+    }
+}