format:format and fix code

.eslintrc.js

@@ -0,0 +1,57 @@
+module.exports = {
+  root: true,
+  ignorePatterns: ["node_modules", "dist", "build", "coverage"],
+  env: {
+    node: true,
+    es6: true,
+  },
+  parser: "@typescript-eslint/parser",
+  plugins: ["@typescript-eslint"],
+  extends: [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:prettier/recommended",
+  ],
+  rules: {
+    "prettier/prettier": "error",
+    "@typescript-eslint/no-explicit-any": "warn",
+    "@typescript-eslint/no-unused-vars": ["warn", { argsIgnorePattern: "^_" }],
+    "@typescript-eslint/explicit-function-return-type": 0,
+  },
+  overrides: [
+    {
+      files: ["frontend/**/*.{js,ts,vue}"],
+      env: {
+        browser: true,
+      },
+      parser: "vue-eslint-parser",
+      parserOptions: {
+        parser: "@typescript-eslint/parser",
+        ecmaVersion: 2020,
+        sourceType: "module",
+      },
+      extends: [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended",
+        "plugin:vue/vue3-recommended",
+        "plugin:prettier/recommended",
+      ],
+      plugins: ["@typescript-eslint", "vue"],
+      rules: {
+        "vue/multi-word-component-names": "off",
+        "vue/require-default-prop": "off",
+        "vue/no-v-html": "off",
+      },
+    },
+    {
+      files: ["backend/**/*.{js,ts}"],
+      env: {
+        node: true,
+      },
+      rules: {
+        "@typescript-eslint/explicit-function-return-type": 0,
+        "@typescript-eslint/no-non-null-assertion": "warn",
+      },
+    },
+  ],
+};