fix: changes found during the backfill

indexer/migrations/20241105001040-add-indexes-to-guards.js

@@ -0,0 +1,26 @@
+"use strict";
+
+/** @type {import('sequelize-cli').Migration} */
+module.exports = {
+  async up(queryInterface) {
+    await queryInterface.addIndex("Guards", {
+      name: "guards_publickey_chainid_account_unique_idx",
+      fields: ["publicKey", "chainId", "account"],
+      unique: true,
+    });
+
+    await queryInterface.addIndex("Guards", {
+      name: "guards_publickey_idx",
+      fields: ["publicKey"],
+    });
+  },
+
+  async down(queryInterface) {
+    await queryInterface.removeIndex(
+      "Guards",
+      "guards_publicKey_chainId_account_unique_idx",
+    );
+
+    await queryInterface.removeIndex("Guards", "guards_publickey_idx");
+  },
+};