chore(lint): set up ESLint

Added ESLint dependencies and ESLint configuration.

package.json

@@ -8,7 +8,9 @@
     "build": "vite build",
     "preview": "vite preview",
     "test": "vitest",
-    "test:run": "vitest run"
+    "test:run": "vitest run",
+    "lint": "eslint .",
+    "lint:fix": "eslint . --fix"
   },
   "dependencies": {
     "pinia": "^3.0.4",
@@ -19,9 +21,14 @@
     "vue-router": "^5.0.6"
   },
   "devDependencies": {
+    "@eslint/js": "^10.0.1",
     "@pinia/testing": "^1.0.3",
     "@vitejs/plugin-vue": "^6.0.6",
     "@vue/test-utils": "^2.4.6",
+    "eslint": "^10.8.1",
+    "eslint-plugin-vue": "^10.10.0",
+    "generate-license-file": "^4.2.1",
+    "globals": "^17.9.0",
     "jsdom": "^29.1.1",
     "vite": "^8.0.10",
     "vite-plugin-html": "^3.2.2",