e2e: harden akLogin against the Lit stage re-render race

fill-verify-Enter with a single inputValue read per stage (identification
and password); the toHaveValue assertion hard-failed every attempt when the
re-render wipe landed inside its 5s window (00-auth.setup failure 2026-09-24)

tests/e2e/lib/login.ts

@@ -13,20 +13,30 @@ export async function akLogin(page: Page, baseUrl: string, user: string, pass: s
   await page.goto(baseUrl + "/");
   const uid = page.locator('input[name="uidField"]');
   await uid.waitFor({ state: "visible", timeout: 90_000 });
-  await uid.fill(user);
+
-  await page.locator('button[type="submit"]').first().click();
+  // The flow executor (Lit) re-renders a stage right after mount and can wipe
+  // a programmatic fill; a submit then POSTs an empty form ("This field is
+  // required") and the stage never advances. Both stages share the race:
+  // fill, VERIFY the value survived with a single read (a toHaveValue
+  // assertion hard-fails the attempt when the wipe lands inside its window),
+  // submit via Enter (native form path; the button can be re-created between
+  // snapshot and click), and retry if the stage reset under us.
+  for (let attempt = 0; attempt < 3; attempt++) {
+    await uid.fill(user);
+    if ((await uid.inputValue()) !== user) continue;
+    await uid.press("Enter");
+    try {
+      await page.locator('input[name="password"]').waitFor({ state: "visible", timeout: 15_000 });
+      break;
+    } catch {
+      if (attempt === 2) throw new Error("identification stage never advanced after 3 attempts");
+    }
+  }
 
   const pwd = page.locator('input[name="password"]');
-  await pwd.waitFor({ state: "visible", timeout: 30_000 });
-
-  // authentik's flow executor (Lit) can re-render the stage right after it
-  // mounts, wiping a programmatic fill; clicking the submit button then
-  // POSTs an empty form ("This field is required"). Fill, VERIFY the value
-  // survived, and submit via Enter (native form path), retrying if the
-  // stage reset under us.
   for (let attempt = 0; attempt < 3; attempt++) {
     await pwd.fill(pass);
-    await expect(pwd).toHaveValue(pass, { timeout: 5_000 });
+    if ((await pwd.inputValue()) !== pass) continue;
     await pwd.press("Enter");
     try {
       await page.waitForURL(/:\/\/www\.franksdank\.cloud\//, { timeout: 20_000 });