feat(app): add manual entry and sharing flows

lib/core/errors/data_exceptions.dart

@@ -1,5 +1,5 @@
 /// 데이터 레이어 예외 클래스들
-/// 
+///
 /// API, 데이터베이스, 파싱 관련 예외를 정의합니다.
 
 import 'app_exceptions.dart';
@@ -7,20 +7,17 @@ import 'app_exceptions.dart';
 /// API 예외 기본 클래스
 abstract class ApiException extends DataException {
   final int? statusCode;
-  
+
   const ApiException({
     required String message,
     this.statusCode,
     String? code,
     dynamic originalError,
-  }) : super(
-    message: message,
-    code: code,
-    originalError: originalError,
-  );
-  
+  }) : super(message: message, code: code, originalError: originalError);
+
   @override
-  String toString() => '$runtimeType: $message${statusCode != null ? ' (HTTP $statusCode)' : ''}';
+  String toString() =>
+      '$runtimeType: $message${statusCode != null ? ' (HTTP $statusCode)' : ''}';
 }
 
 /// 네이버 API 예외
@@ -31,27 +28,27 @@ class NaverApiException extends ApiException {
     String? code,
     dynamic originalError,
   }) : super(
-    message: message,
-    statusCode: statusCode,
-    code: code,
-    originalError: originalError,
-  );
+         message: message,
+         statusCode: statusCode,
+         code: code,
+         originalError: originalError,
+       );
 }
 
 /// HTML 파싱 예외
 class HtmlParsingException extends DataException {
   final String? url;
-  
+
   const HtmlParsingException({
     required String message,
     this.url,
     dynamic originalError,
   }) : super(
-    message: message,
-    code: 'HTML_PARSE_ERROR',
-    originalError: originalError,
-  );
-  
+         message: message,
+         code: 'HTML_PARSE_ERROR',
+         originalError: originalError,
+       );
+
   @override
   String toString() {
     final base = super.toString();
@@ -63,18 +60,18 @@ class HtmlParsingException extends DataException {
 class DataConversionException extends DataException {
   final String fromType;
   final String toType;
-  
+
   const DataConversionException({
     required String message,
     required this.fromType,
     required this.toType,
     dynamic originalError,
   }) : super(
-    message: message,
-    code: 'DATA_CONVERSION_ERROR',
-    originalError: originalError,
-  );
-  
+         message: message,
+         code: 'DATA_CONVERSION_ERROR',
+         originalError: originalError,
+       );
+
   @override
   String toString() => '$runtimeType: $message ($fromType → $toType)';
 }
@@ -86,10 +83,10 @@ class CacheException extends StorageException {
     String? code,
     dynamic originalError,
   }) : super(
-    message: message,
-    code: code ?? 'CACHE_ERROR',
-    originalError: originalError,
-  );
+         message: message,
+         code: code ?? 'CACHE_ERROR',
+         originalError: originalError,
+       );
 }
 
 /// Hive 예외
@@ -99,51 +96,47 @@ class HiveException extends StorageException {
     String? code,
     dynamic originalError,
   }) : super(
-    message: message,
-    code: code ?? 'HIVE_ERROR',
-    originalError: originalError,
-  );
+         message: message,
+         code: code ?? 'HIVE_ERROR',
+         originalError: originalError,
+       );
 }
 
 /// URL 처리 예외
 class UrlProcessingException extends DataException {
   final String url;
-  
+
   const UrlProcessingException({
     required String message,
     required this.url,
     String? code,
     dynamic originalError,
   }) : super(
-    message: message,
-    code: code ?? 'URL_PROCESSING_ERROR',
-    originalError: originalError,
-  );
-  
+         message: message,
+         code: code ?? 'URL_PROCESSING_ERROR',
+         originalError: originalError,
+       );
+
   @override
   String toString() => '$runtimeType: $message (URL: $url)';
 }
 
 /// 잘못된 URL 형식 예외
 class InvalidUrlException extends UrlProcessingException {
-  const InvalidUrlException({
-    required String url,
-    String? message,
-  }) : super(
-    message: message ?? '올바르지 않은 URL 형식입니다',
-    url: url,
-    code: 'INVALID_URL',
-  );
+  const InvalidUrlException({required String url, String? message})
+    : super(
+        message: message ?? '올바르지 않은 URL 형식입니다',
+        url: url,
+        code: 'INVALID_URL',
+      );
 }
 
 /// 지원하지 않는 URL 예외
 class UnsupportedUrlException extends UrlProcessingException {
-  const UnsupportedUrlException({
-    required String url,
-    String? message,
-  }) : super(
-    message: message ?? '지원하지 않는 URL입니다',
-    url: url,
-    code: 'UNSUPPORTED_URL',
-  );
-}
+  const UnsupportedUrlException({required String url, String? message})
+    : super(
+        message: message ?? '지원하지 않는 URL입니다',
+        url: url,
+        code: 'UNSUPPORTED_URL',
+      );
+}