chore(eslint): define eslint flat config

eslint.config.mjs

@@ -0,0 +1,42 @@
+import pluginVue from "eslint-plugin-vue";
+import vueTsEslintConfig from "@vue/eslint-config-typescript";
+import vueParser from "vue-eslint-parser";
+
+export default [
+  ...pluginVue.configs["flat/recommended"],
+  ...vueTsEslintConfig(),
+  {
+    rules: {
+      indent: ["error", 2],
+      quotes: ["error", "double"],
+      camelcase: "warn",
+      semi: "error",
+      "no-trailing-spaces": "error",
+      "linebreak-style": ["error", "unix"],
+      "no-warning-comments": "warn",
+      "@typescript-eslint/no-explicit-any": "off"
+    },
+  },
+  {
+    files: ["**/*.vue"],
+    languageOptions: {
+      parser: vueParser
+    },
+    rules: {
+      "vue/multi-word-component-names": "off",
+    }
+  },
+  {
+    files: ["config/*.js"],
+    rules: {
+      "@typescript-eslint/no-require-imports": "off"
+    }
+  },
+  {
+    ignores: [
+      "dist/*",
+      ".swc/*",
+      ".github/*"
+    ],
+  }
+];