Up-arrow (and toggle hotkey) folds chat/terminal back into the notch even while held open

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

NotchBuddy/Sources/App/IslandRootView.swift

@@ -563,7 +563,7 @@ struct IslandHeader: View {
                     Button(action: {
                         state.chatDragHeight = nil
                         state.chatDetent = 0
-                        NotificationCenter.default.post(name: .islandCollapse, object: nil)
+                        NotificationCenter.default.post(name: .islandCollapse, object: "user")
                     }) {
                         Image(systemName: "chevron.up")
                             .font(.system(size: 13, weight: .semibold))

NotchBuddy/Sources/App/IslandWindowController.swift

@@ -369,8 +369,14 @@ final class IslandWindowController: NSWindowController {
         state.lastActivity = .now
     }
 
-    func collapse() {
+    /// `byUser`: the ⌃ button or the toggle hotkey — folds a chat/terminal tab away too;
+    /// only a pending approval still keeps the island open.
+    func collapse(byUser: Bool = false) {
+        if byUser {
+            guard state.pendingApproval == nil else { return }
+        } else {
             guard fsm.isHeldOpen?() != true else { return }
+        }
         state.isPinned = false
         finishedPinTimer?.cancel()
         // Keep the FSM in step with what is on screen (home/coucou → petit now).
@@ -391,7 +397,7 @@ final class IslandWindowController: NSWindowController {
         switch action {
         case .toggleIsland:
             if state.mode == .expanded {
-                collapse()
+                collapse(byUser: true)
             } else {
                 islandPanel.makeKey()
                 expand(to: defaultView())
@@ -617,8 +623,9 @@ final class IslandWindowController: NSWindowController {
         }
 
         // Collapse requests from views (OK button, etc.)
-        NotificationCenter.default.addObserver(forName: .islandCollapse, object: nil, queue: .main) { [weak self] _ in
-            self?.collapse()
+        NotificationCenter.default.addObserver(forName: .islandCollapse, object: nil, queue: .main) { [weak self] note in
+            let byUser = (note.object as? String) == "user"
+            MainActor.assumeIsolated { self?.collapse(byUser: byUser) }
         }
 
         // Wardrobe open/close from desktop Mochi right-click (does NOT post .hookExpand)