ci: add code check badges and coverage reports

adminfront/src/components/common/LanguageSelector.test.tsx

@@ -1,4 +1,4 @@
-import { render, screen, fireEvent } from "@testing-library/react";
+import { fireEvent, render, screen } from "@testing-library/react";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import LanguageSelector from "./LanguageSelector";
 

adminfront/src/components/common/LanguageSelector.tsx

@@ -1,6 +1,7 @@
 import { useEffect, useState } from "react";
 import { LOCALE_STORAGE_KEY } from "../../../../common/core/i18n";
 import { t } from "../../lib/i18n";
+
 const SUPPORTED_LOCALES = ["ko", "en"] as const;
 
 type Locale = (typeof SUPPORTED_LOCALES)[number];