feat: Rename encryptedName to name in Categories table and update related logic

lib/data/note_repository.dart

@@ -39,41 +39,29 @@ class NoteRepository {
     final List<DbCategory> dbCategories = await _database.getAllCategories();
     final List<Category> categories = [];
     for (final DbCategory row in dbCategories) {
-      try {
-        final String decryptedName = await NoteEncryption.decryptNote(
-          row.encryptedName,
-          _masterKey,
-        );
-        categories.add(
-          Category(
-            id: row.id,
-            name: decryptedName,
-            serverVersion: row.serverVersion,
-            isDeleted: row.isDeleted,
-            updatedAt: row.updatedAt,
-            isDirty: row.isDirty,
-            colorValue: row.colorValue,
-            iconCodePoint: row.iconCodePoint,
-          ),
-        );
-      } catch (e) {
-        debugPrint('Error al desencriptar categoría: $e');
-      }
+      categories.add(
+        Category(
+          id: row.id,
+          name: row.name,
+          serverVersion: row.serverVersion,
+          isDeleted: row.isDeleted,
+          updatedAt: row.updatedAt,
+          isDirty: row.isDirty,
+          colorValue: row.colorValue,
+          iconCodePoint: row.iconCodePoint,
+        ),
+      );
     }
     return categories;
   }
 
   Future<void> createCategory(Category category) async {
     debugPrint('createCategory called with: ${category.name}');
-    final String encryptedName = await NoteEncryption.encryptNote(
-      category.name,
-      _masterKey,
-    );
-    debugPrint('Category name encrypted');
+
     await _database.upsertCategory(
       CategoriesCompanion.insert(
         id: category.id,
-        encryptedName: encryptedName,
+        name: category.name,
         updatedAt: category.updatedAt,
         serverVersion: const Value(0),
         isDeleted: const Value(false),
@@ -317,14 +305,15 @@ class NoteRepository {
     // Apply categories from server
     for (final SyncCategoryResponse catResponse
         in response.changes.categories) {
-      // Store the encrypted blob received from the server directly in the DB.
-      // Decryption is only performed when loading categories for display.
-      final String encryptedBlob = catResponse.encryptedName;
+      final String plainName = await _plainCategoryName(
+        catResponse.encryptedName,
+        _masterKey,
+      );
 
       await _database.upsertCategory(
         CategoriesCompanion(
           id: Value(catResponse.id),
-          encryptedName: Value(encryptedBlob),
+          name: Value(plainName),
           serverVersion: Value(catResponse.serverVersion),
           isDeleted: Value(catResponse.isDeleted),
           colorValue: Value<int?>(catResponse.colorValue),
@@ -490,16 +479,16 @@ Future<List<SyncCategoryPayload>> _encryptCategories(
   final List<SyncCategoryPayload> payloads = [];
 
   for (final DbCategory row in categories) {
-    // The DB already stores the encrypted name blob in `encryptedName`.
+    // The DB stores the plain category name locally.
     // Use it directly when building the sync payload and preserve
     // color/icon values from the DB row so they are sent to the server.
-    final String encryptedName = row.encryptedName;
+    final String plainName = row.name;
 
     payloads.add(
       SyncCategoryPayload.fromCategory(
         Category(
           id: row.id,
-          name: row.encryptedName,
+          name: plainName,
           serverVersion: row.serverVersion,
           isDeleted: row.isDeleted,
           updatedAt: row.updatedAt,
@@ -507,7 +496,7 @@ Future<List<SyncCategoryPayload>> _encryptCategories(
           colorValue: row.colorValue,
           iconCodePoint: row.iconCodePoint,
         ),
-        encryptedName: encryptedName,
+        encryptedName: await NoteEncryption.encryptNote(plainName, masterKey),
       ),
     );
   }
@@ -709,3 +698,11 @@ int _parallelWorkerCount(int itemCount) {
   );
   return math.max(1, math.min(itemCount, cappedByCpu));
 }
+
+Future<String> _plainCategoryName(String storedName, String masterKey) async {
+  try {
+    return await NoteEncryption.decryptNote(storedName, masterKey);
+  } catch (_) {
+    return storedName;
+  }
+}