feat(macos): add menu Canvas open/close

apps/macos/Sources/Clawdis/AppState.swift

@@ -160,6 +160,9 @@ final class AppState {
         didSet { self.ifNotPreview { UserDefaults.standard.set(self.canvasEnabled, forKey: canvasEnabledKey) } }
     }
 
+    /// Tracks whether the Canvas panel is currently visible (not persisted).
+    var canvasPanelVisible: Bool = false
+
     var peekabooBridgeEnabled: Bool {
         didSet {
             self.ifNotPreview {

apps/macos/Sources/Clawdis/CanvasManager.swift

@@ -9,6 +9,8 @@ final class CanvasManager {
     private var panelController: CanvasWindowController?
     private var panelSessionKey: String?
 
+    var onPanelVisibilityChanged: ((Bool) -> Void)?
+
     /// Optional anchor provider (e.g. menu bar status item). If nil, Canvas anchors to the mouse cursor.
     var defaultAnchorProvider: (() -> NSRect?)?
 
@@ -29,6 +31,9 @@ final class CanvasManager {
             .nonEmpty
 
         if let controller = self.panelController, self.panelSessionKey == session {
+            controller.onVisibilityChanged = { [weak self] visible in
+                self?.onPanelVisibilityChanged?(visible)
+            }
             controller.presentAnchoredPanel(anchorProvider: anchorProvider)
             controller.applyPreferredPlacement(placement)
 
@@ -58,6 +63,9 @@ final class CanvasManager {
             sessionKey: session,
             root: Self.canvasRoot,
             presentation: .panel(anchorProvider: anchorProvider))
+        controller.onVisibilityChanged = { [weak self] visible in
+            self?.onPanelVisibilityChanged?(visible)
+        }
         self.panelController = controller
         self.panelSessionKey = session
         controller.applyPreferredPlacement(placement)

apps/macos/Sources/Clawdis/MenuBar.swift

@@ -81,6 +81,9 @@ struct ClawdisApp: App {
             self.isPanelVisible = visible
             self.updateStatusHighlight()
         }
+        CanvasManager.shared.onPanelVisibilityChanged = { [self] visible in
+            self.state.canvasPanelVisible = visible
+        }
         CanvasManager.shared.defaultAnchorProvider = { [self] in self.statusButtonScreenFrame() }
 
         let handler = StatusItemMouseHandlerView()

apps/macos/Sources/Clawdis/MenuContentView.swift

@@ -63,6 +63,15 @@ struct MenuContent: View {
                     CanvasManager.shared.hideAll()
                 }
             }
+            if self.state.canvasEnabled {
+                Button(self.state.canvasPanelVisible ? "Close Canvas" : "Open Canvas") {
+                    if self.state.canvasPanelVisible {
+                        CanvasManager.shared.hideAll()
+                    } else {
+                        _ = try? CanvasManager.shared.show(sessionKey: "main", path: "/")
+                    }
+                }
+            }
             Divider()
             Button("Settings…") { self.open(tab: .general) }
                 .keyboardShortcut(",", modifiers: [.command])