chore: initialize repository with deployment baseline

eslint.config.js

@@ -0,0 +1,42 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+import pluginReact from "eslint-plugin-react";
+import pluginReactHooks from "eslint-plugin-react-hooks";
+import pluginUnusedImports from "eslint-plugin-unused-imports";
+import reactRefresh from "eslint-plugin-react-refresh";
+
+export default [
+  { ignores: ["dist", "node_modules", "backend/dist"] },
+  {
+    files: ["src/**/*.{js,jsx}"],
+    languageOptions: {
+      ecmaVersion: 2022,
+      sourceType: "module",
+      globals: globals.browser,
+      parserOptions: { ecmaFeatures: { jsx: true } }
+    },
+    plugins: {
+      react: pluginReact,
+      "react-hooks": pluginReactHooks,
+      "react-refresh": reactRefresh,
+      "unused-imports": pluginUnusedImports
+    },
+    settings: {
+      react: { version: "detect" }
+    },
+    rules: {
+      ...pluginJs.configs.recommended.rules,
+      ...pluginReact.configs.recommended.rules,
+      ...pluginReactHooks.configs.recommended.rules,
+      "react/react-in-jsx-scope": "off",
+      "react/prop-types": "off",
+      "no-unused-vars": "off",
+      "unused-imports/no-unused-imports": "error",
+      "unused-imports/no-unused-vars": [
+        "warn",
+        { vars: "all", varsIgnorePattern: "^_", args: "after-used", argsIgnorePattern: "^_" }
+      ],
+      "react-refresh/only-export-components": ["warn", { allowConstantExport: true }]
+    }
+  }
+];