fix: 🐛 error on select after delete

Track removed rows and return with response

Fixes #16

Author: jwelmac

lib/src/mock_supabase_http_client.dart

@@ -468,12 +468,18 @@ class MockSupabaseHttpClient extends BaseClient {
           statusCode: 400, request: request);
     }
 
+    List removedItems = [];
     if (_database.containsKey(tableKey)) {
-      _database[tableKey]!.removeWhere(
-          (row) => _matchesFilters(row: row, filters: queryParams));
+      _database[tableKey]!.removeWhere((row) {
+        final matched = _matchesFilters(row: row, filters: queryParams);
+        if (matched) {
+          removedItems.add(row);
+        }
+        return matched;
+      });
     }
 
-    return _createResponse({'message': 'Deleted'}, request: request);
+    return _createResponse(removedItems, request: request);
   }
 
   StreamedResponse _handleSelect(

test/mock_supabase_http_client_test.dart

@@ -86,6 +86,17 @@ void main() {
       final posts = await mockSupabase.from('posts').select();
       expect(posts.length, 0);
     });
+
+    test('Delete then select', () async {
+      // Test deleting a record
+      await mockSupabase
+          .from('posts')
+          .insert({'id': 1, 'title': 'To be deleted'});
+      final posts =
+          await mockSupabase.from('posts').delete().eq('id', 1).select();
+      expect(posts.length, 1);
+    });
+
     test('Select all columns', () async {
       // Test selecting all records
       await mockSupabase.from('posts').insert([