[BOOK-275] feat: 촬영 시작 시 로딩 상태 띄우기 및 캡쳐 실패 이벤트 추가

Author: seoyoon513

feature/record/src/main/kotlin/com/ninecraft/booket/feature/record/ocr/OcrPresenter.kt

@@ -97,7 +97,17 @@ class OcrPresenter @AssistedInject constructor(
                     isPermissionDialogVisible = false
                 }
 
-                is OcrUiEvent.OnCaptureButtonClick -> {
+                is OcrUiEvent.OnCaptureStart -> {
+                    isLoading = true
+                }
+
+                is OcrUiEvent.OnCaptureFailed -> {
+                    isLoading = false
+                    sideEffect = OcrSideEffect.ShowToast("이미지 캡처에 실패했어요")
+                    Logger.e("ImageCaptureException: ${event.exception.message}")
+                }
+
+                is OcrUiEvent.OnImageCaptured -> {
                     isTextDetectionFailed = false
 
                     recognizeText(event.imageUri)

feature/record/src/main/kotlin/com/ninecraft/booket/feature/record/ocr/OcrUi.kt

@@ -252,6 +252,8 @@ private fun CameraPreview(
                 Button(
                     enabled = !state.isLoading,
                     onClick = {
+                        state.eventSink(OcrUiEvent.OnCaptureStart)
+
                         val executor = ContextCompat.getMainExecutor(context)
                         val photoFile = File.createTempFile("ocr_", ".jpg", context.cacheDir)
                         val output = ImageCapture.OutputFileOptions.Builder(photoFile).build()
@@ -261,11 +263,11 @@ private fun CameraPreview(
                             executor,
                             object : ImageCapture.OnImageSavedCallback {
                                 override fun onImageSaved(outputFileResults: ImageCapture.OutputFileResults) {
-                                    state.eventSink(OcrUiEvent.OnCaptureButtonClick(photoFile.toUri()))
+                                    state.eventSink(OcrUiEvent.OnImageCaptured(photoFile.toUri()))
                                 }
 
                                 override fun onError(exception: ImageCaptureException) {
-                                    Logger.e("ImageCaptureException: ${exception.message}")
+                                    state.eventSink(OcrUiEvent.OnCaptureFailed(exception))
                                 }
                             },
                         )

feature/record/src/main/kotlin/com/ninecraft/booket/feature/record/ocr/OcrUiState.kt

@@ -32,7 +32,9 @@ sealed interface OcrUiEvent : CircuitUiEvent {
     data object OnCloseClick : OcrUiEvent
     data object OnShowPermissionDialog : OcrUiEvent
     data object OnHidePermissionDialog : OcrUiEvent
-    data class OnCaptureButtonClick(val imageUri: Uri) : OcrUiEvent
+    data object OnCaptureStart : OcrUiEvent
+    data class OnCaptureFailed(val exception: Exception) : OcrUiEvent
+    data class OnImageCaptured(val imageUri: Uri) : OcrUiEvent
     data object OnReCaptureButtonClick : OcrUiEvent
     data object OnSelectionConfirmed : OcrUiEvent
     data object OnRecaptureDialogConfirmed : OcrUiEvent