test(e2e): a page load the machine had no buffer for is tried again

net::ERR_NO_BUFFER_SPACE stopped a release at its first page with nothing else running, and the
unchanged rerun passed. Every page load of the suite now goes through one helper, held by a test.

frontend/e2e/global.setup.ts

@@ -4,7 +4,7 @@ import { mkdirSync, readFileSync, writeFileSync } from "node:fs";
 import { dirname, resolve } from "node:path";
 import { fileURLToPath } from "node:url";
 import { MEMBER_STORAGE, SEED_FILE } from "./helpers";
-import { retryConnect } from "./retryConnect";
+import { gotoRetrying, retryConnect } from "./retryConnect";
 
 /**
  * One-time setup for the characterization net (the `setup` project the tests depend on):
@@ -52,7 +52,7 @@ async function signIn(page: Page, email: string, path: string): Promise<void> {
   // and player flows this net locks all open "/" expecting the feed; the opt-out is the one
   // Settings → Appearance → Startup writes. Both flags are the account's local state, held for the
   // account the browser records as their owner (`siftlode.owner`, see storage.ts claimLocalData).
-  await page.goto("/");
+  await gotoRetrying(page, "/");
   await page.evaluate((id: number) => {
     localStorage.setItem("siftlode.owner", String(id));
     localStorage.setItem("siftlode.lang", "en");