ios: fix keyboard behavior

ios/Packages/Sybil/Sources/Sybil/SybilWorkspaceView.swift

@@ -62,6 +62,14 @@ struct SybilWorkspaceView: View {
         return "chat:none"
     }
 
+    private var shouldAutoFocusComposer: Bool {
+        viewModel.displayedMessages.isEmpty
+    }
+
+    private var composerFocusPolicyID: String {
+        "\(transcriptScrollContextID):\(composerFocusRequest):\(shouldAutoFocusComposer)"
+    }
+
     private var canSwipeToCreateChat: Bool {
         guard onRequestNewChat != nil else {
             return false
@@ -124,8 +132,8 @@ struct SybilWorkspaceView: View {
             }
             resetNewChatSwipe(animated: false)
         }
-        .task(id: composerFocusRequest) {
-            await focusComposerIfRequested()
+        .task(id: composerFocusPolicyID) {
+            await applyComposerFocusPolicy()
         }
     }
 
@@ -346,15 +354,13 @@ struct SybilWorkspaceView: View {
     }
 
     @MainActor
-    private func focusComposerIfRequested() async {
-        guard composerFocusRequest > 0 else {
+    private func applyComposerFocusPolicy() async {
+        guard shouldAutoFocusComposer else {
+            composerFocused = false
             return
         }
 
-        await Task.yield()
-        try? await Task.sleep(for: .milliseconds(80))
-
-        guard viewModel.showsComposer, !viewModel.isSearchMode else {
+        guard shouldAutoFocusComposer, viewModel.showsComposer else {
             return
         }
         composerFocused = true