refactor: remove JsonKey annotations

- Remove JsonKey annotation
- Generate *.g.dart files

Author: fulleni

lib/src/models/auth/user.dart

@@ -42,7 +42,7 @@ class User extends Equatable {
   final String? email;
 
   /// The role of the user.
-  @JsonKey(unknownEnumValue: JsonKey.nullForUndefinedEnumValue)
+
   final UserRole role;
 
   /// The date and time the user account was created.

lib/src/models/auth/user.g.dart

@@ -1,5 +1,9 @@
 import 'package:equatable/equatable.dart';
+import 'package:ht_shared/ht_shared.dart' show FeedItem;
 import 'package:ht_shared/src/models/core/content_type.dart';
+import 'package:ht_shared/src/models/core/core.dart' show FeedItem;
+import 'package:ht_shared/src/models/core/feed_item.dart' show FeedItem;
+import 'package:ht_shared/src/models/models.dart' show FeedItem;
 import 'package:json_annotation/json_annotation.dart';
 import 'package:meta/meta.dart';
 
@@ -92,7 +96,7 @@ class OpenInternalContent extends FeedItemAction {
   final String contentId;
 
   /// The type of the internal content (e.g., headline, category, source).
-  @JsonKey(unknownEnumValue: JsonKey.nullForUndefinedEnumValue)
+
   final ContentType contentType;
 
   @override
@@ -135,7 +139,7 @@ class ShowInterstitialThenOpenInternalContent extends FeedItemAction {
   final String contentId;
 
   /// The type of the internal content (e.g., headline, category, source).
-  @JsonKey(unknownEnumValue: JsonKey.nullForUndefinedEnumValue)
+
   final ContentType contentType;
 
   @override

lib/src/models/core/feed_item_action.dart

@@ -54,7 +54,7 @@ class Source extends FeedItem {
   /// The type of the source (e.g., newsAgency, blog).
   /// If an unknown value is encountered during deserialization,
   /// this field will be set to null.
-  @JsonKey(unknownEnumValue: JsonKey.nullForUndefinedEnumValue)
+
   final SourceType? sourceType;
 
   /// The language code of the source (e.g., 'en', 'fr').

lib/src/models/core/feed_item_action.g.dart

@@ -63,7 +63,7 @@ class Ad extends FeedItem {
 
   /// The type of the ad, indicating its visual format.
   /// Will be null if an unknown value is encountered during deserialization.
-  @JsonKey(unknownEnumValue: JsonKey.nullForUndefinedEnumValue)
+
   final AdType? adType;
 
   /// An optional identifier indicating the intended placement or slot

lib/src/models/entities/source.dart

@@ -51,7 +51,7 @@ class EngagementContent extends FeedItem {
 
   /// The type of engagement content.
   /// Will be null if an unknown value is encountered during deserialization.
-  @JsonKey(unknownEnumValue: JsonKey.nullForUndefinedEnumValue)
+
   final EngagementContentType? engagementContentType;
 
   /// The text for the call-to-action button or link.