chore: prepare official supabase self-host setup

frontend/eslint.config.js

@@ -0,0 +1,22 @@
+import js from "@eslint/js";
+import tseslint from "typescript-eslint";
+
+export default tseslint.config(
+  {
+    ignores: ["dist/**", "node_modules/**"]
+  },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    files: ["src/**/*.{ts,tsx}", "*.ts"],
+    languageOptions: {
+      ecmaVersion: 2022,
+      sourceType: "module",
+      globals: {
+        document: "readonly",
+        console: "readonly",
+        window: "readonly"
+      }
+    }
+  }
+);