chore: rename project to clawdbot

apps/macos/Sources/Clawdbot/HeartbeatStore.swift

@@ -0,0 +1,39 @@
+import Foundation
+import Observation
+import SwiftUI
+
+@MainActor
+@Observable
+final class HeartbeatStore {
+    static let shared = HeartbeatStore()
+
+    private(set) var lastEvent: ControlHeartbeatEvent?
+
+    private var observer: NSObjectProtocol?
+
+    private init() {
+        self.observer = NotificationCenter.default.addObserver(
+            forName: .controlHeartbeat,
+            object: nil,
+            queue: .main)
+        { [weak self] note in
+            guard let data = note.object as? Data else { return }
+            if let decoded = try? JSONDecoder().decode(ControlHeartbeatEvent.self, from: data) {
+                Task { @MainActor in self?.lastEvent = decoded }
+            }
+        }
+
+        Task {
+            if self.lastEvent == nil {
+                if let evt = try? await ControlChannel.shared.lastHeartbeat() {
+                    self.lastEvent = evt
+                }
+            }
+        }
+    }
+
+    @MainActor
+    deinit {
+        if let observer { NotificationCenter.default.removeObserver(observer) }
+    }
+}