first commit

frontend/src/App.test.tsx

@@ -0,0 +1,10 @@
+import { describe, it, expect } from "vitest"
+import { render, screen } from "@testing-library/react"
+import App from "./App"
+
+describe("App", () => {
+  it("renders platform title", () => {
+    render(<App />)
+    expect(screen.getByText("PromptCR-Lab")).toBeInTheDocument()
+  })
+})