deploy linting and first unit test maybe

eslint.config.js

@@ -0,0 +1,35 @@
+import globals from "globals";
+import tseslint from "typescript-eslint";
+import pluginReact from "eslint-plugin-react";
+import pluginReactHooks from "eslint-plugin-react-hooks";
+import pluginReactRefresh from "eslint-plugin-react-refresh";
+
+export default tseslint.config(
+  {
+    // Global ignores
+    ignores: ["dist", ".gitea", "supabase", "node_modules", "*.cjs"],
+  },
+  {
+    // All files
+    files: ["**/*.{js,mjs,cjs,ts,jsx,tsx}"],
+    plugins: {
+      react: pluginReact,
+      "react-hooks": pluginReactHooks,
+      "react-refresh": pluginReactRefresh,
+    },
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.es2020,
+      },
+    },
+    rules: {
+      "react-refresh/only-export-components": [
+        "warn",
+        { allowConstantExport: true },
+      ],
+    },
+  },
+  // TypeScript files
+  ...tseslint.configs.recommended,
+);