[#177] PushNotificationListView의 시트에서 툴바가 보이도록 하고, 수정 버튼이 없도록 구현한다

DevLog/Presentation/ViewModel/TodoDetailViewModel.swift

@@ -35,18 +35,21 @@ final class TodoDetailViewModel: Store {
     }
 
     private(set) var state: State = .init()
+    let showEditButton: Bool
     private let fetchUseCase: FetchTodoByIDUseCase
     private let upsertUseCase: UpsertTodoUseCase
     private let todoID: String
 
     init(
         fetchUseCase: FetchTodoByIDUseCase,
         upsertUseCase: UpsertTodoUseCase,
-        todoID: String
+        todoID: String,
+        showEditButton: Bool = true
     ) {
         self.fetchUseCase = fetchUseCase
         self.upsertUseCase = upsertUseCase
         self.todoID = todoID
+        self.showEditButton = showEditButton
     }
 
     func reduce(with action: Action) -> [SideEffect] {

DevLog/UI/Home/TodoDetailView.swift

@@ -52,14 +52,16 @@ struct TodoDetailView: View {
                 Image(systemName: "info.circle")
             }
         }
-        if #available(iOS 26.0, *) {
-            ToolbarSpacer(.fixed, placement: .topBarTrailing)
-        }
-        ToolbarItem(placement: .topBarTrailing) {
-            Button {
-                viewModel.send(.setShowEditor(true))
-            } label: {
-                Text("수정")
+        if viewModel.showEditButton {
+            if #available(iOS 26.0, *) {
+                ToolbarSpacer(.fixed, placement: .topBarTrailing)
+            }
+            ToolbarItem(placement: .topBarTrailing) {
+                Button {
+                    viewModel.send(.setShowEditor(true))
+                } label: {
+                    Text("수정")
+                }
             }
         }
     }

DevLog/UI/PushNotification/PushNotificationListView.swift

@@ -79,13 +79,18 @@ struct PushNotificationListView: View {
                 get: { viewModel.state.selectedTodoID },
                 set: { viewModel.send(.setSelectedTodoID($0)) }
             )) { item in
-                VStack(spacing: 0) {
-                    Spacer(minLength: 16)
+                NavigationStack {
                     TodoDetailView(viewModel: TodoDetailViewModel(
                         fetchUseCase: container.resolve(FetchTodoByIDUseCase.self),
                         upsertUseCase: container.resolve(UpsertTodoUseCase.self),
-                        todoID: item.id
+                        todoID: item.id,
+                        showEditButton: false
                     ))
+                    .toolbar {
+                        ToolbarLeadingButton {
+                            viewModel.send(.setSelectedTodoID(nil))
+                        }
+                    }
                 }
                 .background(Color(.secondarySystemBackground))
                 .presentationDragIndicator(.visible)