feat: add form and page platform

tests/e2e/accessibility.spec.js

@@ -2,9 +2,10 @@ import AxeBuilder from "@axe-core/playwright";
 import { expect, test } from "@playwright/test";
 import { ROUTE_REGISTRY } from "../../src/features/installed-feature-contracts.js";
 
-for (const route of Object.values(ROUTE_REGISTRY).map((definition) =>
-  definition.path === "*" ? "/not-found" : definition.path,
-)) {
+for (const route of Object.values(ROUTE_REGISTRY).map((definition) => {
+  if (definition.path === "*") return "/not-found";
+  return definition.path.replace(":resourceId", "reference-1");
+})) {
   test(`@a11y ${route} has no critical or serious axe violations`, async ({
     page,
   }) => {

tests/e2e/reference-form.spec.js

@@ -0,0 +1,50 @@
+import { expect, test } from "@playwright/test";
+
+/** @param {import("@playwright/test").Page} page */
+async function openReferenceForm(page) {
+  await page.goto("/examples/reference-resources/new");
+  await page.getByRole("button", { name: "로그인 시작" }).click();
+  await expect(
+    page.getByRole("heading", { name: "Reference resource 만들기" }),
+  ).toBeVisible();
+}
+
+test("validates a reference form and focuses the first invalid field", async ({
+  page,
+}) => {
+  await openReferenceForm(page);
+  await page.getByRole("button", { name: "저장" }).click();
+
+  const firstField = page.getByRole("textbox", { name: /새 항목 이름/ });
+  await expect(firstField).toBeFocused();
+  await expect(firstField).toHaveAttribute("aria-invalid", "true");
+  await expect(page.getByRole("alert")).toContainText("입력 내용을 확인해 주세요.");
+});
+
+test("guards dirty cancellation and restores focus when writing continues", async ({
+  page,
+}) => {
+  await openReferenceForm(page);
+  await page
+    .getByRole("textbox", { name: /새 항목 이름/ })
+    .fill("Unsaved reference");
+  const cancel = page.getByRole("button", { name: "취소" });
+  await cancel.click();
+
+  await expect(
+    page.getByRole("dialog", { name: "저장하지 않은 변경이 있습니다." }),
+  ).toBeVisible();
+  await page.getByRole("button", { name: "계속 작성" }).click();
+  await expect(cancel).toBeFocused();
+  await expect(page).toHaveURL(/\/examples\/reference-resources\/new$/);
+});
+
+test("keeps the form template within a 320px viewport", async ({ page }) => {
+  await page.setViewportSize({ width: 320, height: 720 });
+  await openReferenceForm(page);
+  const viewport = await page.evaluate(() => ({
+    clientWidth: document.documentElement.clientWidth,
+    scrollWidth: document.documentElement.scrollWidth,
+  }));
+  expect(viewport.scrollWidth).toBeLessThanOrEqual(viewport.clientWidth);
+});