feat(ios): add ClawdisNode app scaffold

apps/ios/Sources/Voice/VoiceTab.swift

@@ -0,0 +1,30 @@
+import SwiftUI
+
+struct VoiceTab: View {
+    @EnvironmentObject private var appModel: NodeAppModel
+    @EnvironmentObject private var voiceWake: VoiceWakeManager
+    @AppStorage("voiceWake.enabled") private var voiceWakeEnabled: Bool = false
+
+    var body: some View {
+        NavigationStack {
+            List {
+                Section("Status") {
+                    LabeledContent("Voice Wake", value: self.voiceWakeEnabled ? "Enabled" : "Disabled")
+                    LabeledContent("Listener", value: self.voiceWake.isListening ? "Listening" : "Idle")
+                    Text(self.voiceWake.statusText)
+                        .font(.footnote)
+                        .foregroundStyle(.secondary)
+                }
+
+                Section("Notes") {
+                    Text("Say “clawdis …” to trigger.")
+                        .foregroundStyle(.secondary)
+                }
+            }
+            .navigationTitle("Voice")
+            .onChange(of: self.voiceWakeEnabled) { _, newValue in
+                self.appModel.setVoiceWakeEnabled(newValue)
+            }
+        }
+    }
+}

apps/ios/Sources/Voice/VoiceWakeManager.swift

@@ -0,0 +1,174 @@
+import AVFAudio
+import Foundation
+import Speech
+
+@MainActor
+final class VoiceWakeManager: NSObject, ObservableObject {
+    @Published var isEnabled: Bool = false
+    @Published var isListening: Bool = false
+    @Published var statusText: String = "Off"
+
+    private let audioEngine = AVAudioEngine()
+    private var speechRecognizer: SFSpeechRecognizer?
+    private var recognitionRequest: SFSpeechAudioBufferRecognitionRequest?
+    private var recognitionTask: SFSpeechRecognitionTask?
+
+    private var lastDispatched: String?
+    private var onCommand: (@Sendable (String) async -> Void)?
+
+    func configure(onCommand: @escaping @Sendable (String) async -> Void) {
+        self.onCommand = onCommand
+    }
+
+    func setEnabled(_ enabled: Bool) {
+        self.isEnabled = enabled
+        if enabled {
+            Task { await self.start() }
+        } else {
+            self.stop()
+        }
+    }
+
+    func start() async {
+        guard self.isEnabled else { return }
+        if self.isListening { return }
+
+        self.statusText = "Requesting permissions…"
+
+        let micOk = await Self.requestMicrophonePermission()
+        guard micOk else {
+            self.statusText = "Microphone permission denied"
+            self.isListening = false
+            return
+        }
+
+        let speechOk = await Self.requestSpeechPermission()
+        guard speechOk else {
+            self.statusText = "Speech recognition permission denied"
+            self.isListening = false
+            return
+        }
+
+        self.speechRecognizer = SFSpeechRecognizer()
+        guard self.speechRecognizer != nil else {
+            self.statusText = "Speech recognizer unavailable"
+            self.isListening = false
+            return
+        }
+
+        do {
+            try Self.configureAudioSession()
+            try self.startRecognition()
+            self.isListening = true
+            self.statusText = "Listening"
+        } catch {
+            self.isListening = false
+            self.statusText = "Start failed: \(error.localizedDescription)"
+        }
+    }
+
+    func stop() {
+        self.isEnabled = false
+        self.isListening = false
+        self.statusText = "Off"
+
+        self.recognitionTask?.cancel()
+        self.recognitionTask = nil
+        self.recognitionRequest = nil
+
+        if self.audioEngine.isRunning {
+            self.audioEngine.stop()
+            self.audioEngine.inputNode.removeTap(onBus: 0)
+        }
+
+        try? AVAudioSession.sharedInstance().setActive(false, options: .notifyOthersOnDeactivation)
+    }
+
+    private func startRecognition() throws {
+        self.recognitionTask?.cancel()
+        self.recognitionTask = nil
+
+        let request = SFSpeechAudioBufferRecognitionRequest()
+        request.shouldReportPartialResults = true
+        self.recognitionRequest = request
+
+        let inputNode = self.audioEngine.inputNode
+        inputNode.removeTap(onBus: 0)
+
+        let recordingFormat = inputNode.outputFormat(forBus: 0)
+        inputNode.installTap(onBus: 0, bufferSize: 1024, format: recordingFormat) { [weak self] buffer, _ in
+            guard let self else { return }
+            self.recognitionRequest?.append(buffer)
+        }
+
+        self.audioEngine.prepare()
+        try self.audioEngine.start()
+
+        self.recognitionTask = self.speechRecognizer?.recognitionTask(with: request) { [weak self] result, error in
+            guard let self else { return }
+            if let error {
+                self.statusText = "Recognizer error: \(error.localizedDescription)"
+                self.isListening = false
+                if self.isEnabled {
+                    Task {
+                        try? await Task.sleep(nanoseconds: 700_000_000)
+                        await self.start()
+                    }
+                }
+                return
+            }
+            guard let result else { return }
+
+            let transcript = result.bestTranscription.formattedString
+            if let cmd = self.extractCommand(from: transcript) {
+                if cmd != self.lastDispatched {
+                    self.lastDispatched = cmd
+                    self.statusText = "Triggered"
+                    Task { [weak self] in
+                        guard let self else { return }
+                        await self.onCommand?(cmd)
+                        if self.isEnabled {
+                            await self.start()
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private func extractCommand(from transcript: String) -> String? {
+        let lower = transcript.lowercased()
+        guard let range = lower.range(of: "clawdis", options: .backwards) else { return nil }
+        let after = lower[range.upperBound...]
+        let trimmed = after.trimmingCharacters(in: .whitespacesAndNewlines)
+        if trimmed.isEmpty { return nil }
+        return trimmed
+    }
+
+    private static func configureAudioSession() throws {
+        let session = AVAudioSession.sharedInstance()
+        try session.setCategory(.playAndRecord, mode: .measurement, options: [
+            .duckOthers,
+            .mixWithOthers,
+            .allowBluetooth,
+            .defaultToSpeaker,
+        ])
+        try session.setActive(true, options: [])
+    }
+
+    private static func requestMicrophonePermission() async -> Bool {
+        await withCheckedContinuation { cont in
+            AVAudioSession.sharedInstance().requestRecordPermission { ok in
+                cont.resume(returning: ok)
+            }
+        }
+    }
+
+    private static func requestSpeechPermission() async -> Bool {
+        await withCheckedContinuation { cont in
+            SFSpeechRecognizer.requestAuthorization { status in
+                cont.resume(returning: status == .authorized)
+            }
+        }
+    }
+}