[BOOK-284] refactor: adjust navigation flow between Record and Book Detail screens

Author: clxxrlove

src/Projects/BKPresentation/Sources/MainFlow/BookDetail/Coordinator/BookDetailCoordinator.swift

@@ -9,6 +9,7 @@ final class BookDetailCoordinator: Coordinator {
 
     private let isbn: String
     private let userBookId: String
+    private weak var bookDetailViewController: BookDetailViewController?
 
     init(
         parentCoordinator: Coordinator?,
@@ -30,6 +31,7 @@ final class BookDetailCoordinator: Coordinator {
             )
         )
         viewController.coordinator = self
+        bookDetailViewController = viewController
         navigationController.pushViewController(viewController, animated: true)
     }
 }
@@ -52,15 +54,35 @@ extension BookDetailCoordinator {
     }
 
     func didTapCell(recordId: String) {
-        let viewController = NoteCompletionViewController(
-            viewModel: NoteCompletionViewModel(recordId: recordId)
-        )
-        let noteNavigationController = UINavigationController(rootViewController: viewController)
-
+        let noteNavigationController = UINavigationController()
         noteNavigationController.modalPresentationStyle = .fullScreen
+        
+        let noteCompletionCoordinator = NoteCompletionCoordinator(
+            parentCoordinator: self,
+            navigationController: noteNavigationController,
+            recordId: recordId
+        )
+        addChildCoordinator(noteCompletionCoordinator)
+        noteCompletionCoordinator.start()
+        
         navigationController.present(noteNavigationController, animated: true)
     }
 
+    func didTapEditButton(recordId: String, from presentingController: UIViewController) {
+        let editNavigationController = UINavigationController()
+        editNavigationController.modalPresentationStyle = .fullScreen
+        
+        let noteEditCoordinator = NoteEditCoordinator(
+            parentCoordinator: self,
+            navigationController: editNavigationController,
+            recordId: recordId
+        )
+        addChildCoordinator(noteEditCoordinator)
+        noteEditCoordinator.start()
+        
+        presentingController.present(editNavigationController, animated: true)
+    }
+    
     /// 문장 카드 확인 및 공유하기 화면으로 이동합니다.
     func goToShareView(item: BookDetailItem) {
         let viewController = SentenceCardViewController(
@@ -71,4 +93,3 @@ extension BookDetailCoordinator {
         navigationController.pushViewController(viewController, animated: true)
     }
 }
-

src/Projects/BKPresentation/Sources/MainFlow/Note/Coordinator/NoteCoordinator.swift

@@ -45,13 +45,25 @@ extension NoteCoordinator: AuthenticationRequiredNotifying, ErrorHandleable {
 
 extension NoteCoordinator {
     func didCompleteNoteCreation(recordInfo: RecordInfo) {
-        let viewController = NoteCompletionViewController(
-            viewModel: NoteCompletionViewModel(recordId: recordInfo.recordId)
+        let noteNavigationController = UINavigationController()
+        noteNavigationController.modalPresentationStyle = .fullScreen
+        
+        // ✅ 부모를 내 부모(예: BookDetailCoordinator)로 올려준다
+        let parent = self.parentCoordinator ?? self
+        
+        let noteCompletionCoordinator = NoteCompletionCoordinator(
+            parentCoordinator: parent,
+            navigationController: noteNavigationController,
+            recordId: recordInfo.recordId
         )
-        let noteNavigationController = UINavigationController(rootViewController: viewController)
 
-        noteNavigationController.modalPresentationStyle = .fullScreen
-        navigationController.present(noteNavigationController, animated: true) {
+        // 부모의 child로 달기 (addChildCoordinator는 부모 쪽 메서드여야 함)
+        parent.addChildCoordinator(noteCompletionCoordinator)
+        noteCompletionCoordinator.start()
+        
+        // 프리젠터는 parent의 navigationController가 가장 안전
+        parent.navigationController.present(noteNavigationController, animated: true) {
+            // 이제 NoteCoordinator를 정리해도 완료 플로우는 안 죽음
             self.popAndFinish()
         }
     }