refactor(data): rename 'localAd' to 'local_ad' in data operation registry

- Update 'localAd' to 'local_ad' in all relevant method registrations
- Adjust method calls to use the new 'local_ad' key
- Improve consistency in naming convention within the registry

Author: fulleni

lib/src/registry/data_operation_registry.dart

@@ -108,7 +108,7 @@ class DataOperationRegistry {
           .read(id: id, userId: null),
       'remote_config': (c, id) =>
           c.read<DataRepository<RemoteConfig>>().read(id: id, userId: null),
-      'localAd': (c, id) =>
+      'local_ad': (c, id) =>
           c.read<DataRepository<LocalAd>>().read(id: id, userId: null),
       'dashboard_summary': (c, id) =>
           c.read<DashboardSummaryService>().getSummary(),
@@ -161,12 +161,9 @@ class DataOperationRegistry {
         sort: s,
         pagination: p,
       ),
-      'localAd': (c, uid, f, s, p) => c.read<DataRepository<LocalAd>>().readAll(
-        userId: uid,
-        filter: f,
-        sort: s,
-        pagination: p,
-      ),
+      'local_ad': (c, uid, f, s, p) => c
+          .read<DataRepository<LocalAd>>()
+          .readAll(userId: uid, filter: f, sort: s, pagination: p),
     });
 
     // --- Register Item Creators ---
@@ -194,7 +191,7 @@ class DataOperationRegistry {
       'remote_config': (c, item, uid) => c
           .read<DataRepository<RemoteConfig>>()
           .create(item: item as RemoteConfig, userId: uid),
-      'localAd': (c, item, uid) => c.read<DataRepository<LocalAd>>().create(
+      'local_ad': (c, item, uid) => c.read<DataRepository<LocalAd>>().create(
         item: item as LocalAd,
         userId: uid,
       ),
@@ -240,11 +237,9 @@ class DataOperationRegistry {
       'remote_config': (c, id, item, uid) => c
           .read<DataRepository<RemoteConfig>>()
           .update(id: id, item: item as RemoteConfig, userId: uid),
-      'localAd': (c, id, item, uid) => c.read<DataRepository<LocalAd>>().update(
-        id: id,
-        item: item as LocalAd,
-        userId: uid,
-      ),
+      'local_ad': (c, id, item, uid) => c
+          .read<DataRepository<LocalAd>>()
+          .update(id: id, item: item as LocalAd, userId: uid),
     });
 
     // --- Register Item Deleters ---
@@ -268,7 +263,7 @@ class DataOperationRegistry {
           .delete(id: id, userId: uid),
       'remote_config': (c, id, uid) =>
           c.read<DataRepository<RemoteConfig>>().delete(id: id, userId: uid),
-      'localAd': (c, id, uid) =>
+      'local_ad': (c, id, uid) =>
           c.read<DataRepository<LocalAd>>().delete(id: id, userId: uid),
     });
   }