Initial skeleton: React/TS frontend + Go backend structure

client/eslint.config.mjs

@@ -0,0 +1,32 @@
+import js from "@eslint/js"
+import reactHooks from "eslint-plugin-react-hooks"
+import reactRefresh from "eslint-plugin-react-refresh"
+import tseslint from "typescript-eslint"
+
+export default tseslint.config(
+  { ignores: ["dist", "node_modules", "vite.config.ts"] },
+  {
+    extends: [js.configs.recommended, ...tseslint.configs.recommended],
+    files: ["**/*.{ts,tsx}"],
+    languageOptions: {
+      ecmaVersion: 2020,
+      sourceType: "module",
+      parserOptions: {
+        ecmaFeatures: {
+          jsx: true,
+        },
+      },
+    },
+    plugins: {
+      "react-hooks": reactHooks,
+      "react-refresh": reactRefresh,
+    },
+    rules: {
+      ...reactHooks.configs.recommended.rules,
+      "react-refresh/only-export-components": [
+        "warn",
+        { allowConstantExport: true },
+      ],
+    },
+  },
+)