Add safe index rename migration

Migrations/20260210120001_RenameUserNameIndexSafe.cs

@@ -0,0 +1,22 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace line_gestao_api.Migrations
+{
+    /// <inheritdoc />
+    public partial class RenameUserNameIndexSafe : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.Sql("ALTER INDEX IF EXISTS \"IX_AspNetUsers_NormalizedUserName\" RENAME TO \"UserNameIndex\"");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.Sql("ALTER INDEX IF EXISTS \"UserNameIndex\" RENAME TO \"IX_AspNetUsers_NormalizedUserName\"");
+        }
+    }
+}