fix: refresh menu sessions on reconnect

apps/macos/Sources/Clawdbot/MenuSessionsInjector.swift

@@ -1,4 +1,5 @@
 import AppKit
+import Observation
 import SwiftUI
 
 @MainActor
@@ -18,6 +19,7 @@ final class MenuSessionsInjector: NSObject, NSMenuDelegate {
     private var isMenuOpen = false
     private var lastKnownMenuWidth: CGFloat?
     private var menuOpenWidth: CGFloat?
+    private var isObservingControlChannel = false
 
     private var cachedSnapshot: SessionStoreSnapshot?
     private var cachedErrorText: String?
@@ -50,6 +52,7 @@ final class MenuSessionsInjector: NSObject, NSMenuDelegate {
             self.loadTask = Task { await self.refreshCache(force: true) }
         }
 
+        self.startControlChannelObservation()
         self.nodesStore.start()
     }
 
@@ -96,6 +99,50 @@ final class MenuSessionsInjector: NSObject, NSMenuDelegate {
         self.cancelPreviewTasks()
     }
 
+    private func startControlChannelObservation() {
+        guard !self.isObservingControlChannel else { return }
+        self.isObservingControlChannel = true
+        self.observeControlChannelState()
+    }
+
+    private func observeControlChannelState() {
+        withObservationTracking {
+            _ = ControlChannel.shared.state
+        } onChange: { [weak self] in
+            Task { @MainActor [weak self] in
+                guard let self else { return }
+                self.handleControlChannelStateChange()
+                self.observeControlChannelState()
+            }
+        }
+    }
+
+    private func handleControlChannelStateChange() {
+        guard self.isMenuOpen, let menu = self.statusItem?.menu else { return }
+        self.loadTask?.cancel()
+        self.loadTask = Task { [weak self, weak menu] in
+            guard let self, let menu else { return }
+            await self.refreshCache(force: true)
+            await self.refreshUsageCache(force: true)
+            await self.refreshCostUsageCache(force: true)
+            await MainActor.run {
+                guard self.isMenuOpen else { return }
+                self.inject(into: menu)
+                self.injectNodes(into: menu)
+            }
+        }
+
+        self.nodesLoadTask?.cancel()
+        self.nodesLoadTask = Task { [weak self, weak menu] in
+            guard let self, let menu else { return }
+            await self.nodesStore.refresh()
+            await MainActor.run {
+                guard self.isMenuOpen else { return }
+                self.injectNodes(into: menu)
+            }
+        }
+    }
+
     func menuNeedsUpdate(_ menu: NSMenu) {
         self.originalDelegate?.menuNeedsUpdate?(menu)
     }