Löschen implementiert

Services/Storage/StorageMetaDataRepository.cs

@@ -90,4 +90,19 @@ public sealed class StorageMetadataRepository : IStorageMetadataRepository
         }
         return null;
     }
+
+    public async Task DeleteByKeyAsync(string bucket, string key, CancellationToken ct = default)
+    {
+        const string sql = """
+        DELETE FROM storage_objects
+        WHERE bucket = @bucket AND s3_key = @key;
+        """;
+        await using var conn = new MySqlConnector.MySqlConnection(_connStr);
+        await conn.OpenAsync(ct);
+        await using var cmd = new MySqlConnector.MySqlCommand(sql, conn);
+        cmd.Parameters.AddWithValue("@bucket", bucket);
+        cmd.Parameters.AddWithValue("@key", key);
+        await cmd.ExecuteNonQueryAsync(ct);
+    }
+
 }