test(collections): wait for the restore job, not 5 s; no hard-coded saved-view id (#520)

The restore test waited 5 s for a whole restore. Under load (webkit,
merge queue of #514) the restore outlasted it and kept running into the
next tests on the worker, replacing their database. It now waits for
the restore job's event stream to end, as the backups spec does. The
route-change test used saved view 5, which a worker can have made.

tests/browser/workspace-collections.spec.mjs

@@ -5,6 +5,7 @@ import { test, expect } from './fixtures.mjs';
 // page `#/collection/<id>` with its Edit (D137, concept render a1186–1189) and saved views on a collection (D140).
 const workspace = '/prompt_manager/workspace';
 const API = '/prompt_manager/collections';
+const RESTORE_APPLY_URL = '/prompt_manager/restore/apply';
 const main = page => page.locator('#workspace-main');
 const heading = page => main(page).getByRole('heading', { level: 1 });
 const breadcrumb = page => page.locator('#workspace-breadcrumb');
@@ -305,7 +306,12 @@ test('a finished restore reads the collections again', async ({ page, request })
         const chooser = page.waitForEvent('filechooser');
         await page.getByRole('button', { name: 'Review restore…', exact: true }).click();
         await (await chooser).setFiles({ name: 'prompts_backup_20261027_093000.db', mimeType: 'application/octet-stream', buffer: bytes });
+        // Wait for the restore job itself, as workspace-system-backups.spec.mjs does: under load a restore outlasts the
+        // 5 s expect default, and a restore still running after this test replaces the next tests' database (#520).
+        const applied = page.waitForResponse(response => response.url().endsWith(RESTORE_APPLY_URL));
         await page.locator('dialog#modal[open]').getByRole('button', { name: 'Restore', exact: true }).click();
+        const { job } = await (await applied).json();
+        await expect(await request.get(`/prompt_manager/jobs/${job.id}/events`)).toBeOK();
         await expect(toast(page)).toHaveText(/^Database restore finished · /);
         // The list was read again without a reload.
         await expect(rows(page)).toHaveCount(2);
@@ -480,7 +486,7 @@ test('a rename that settles after its dialog closed leaves the next dialog open
 });
 
 test('a page that says a collection or view could not be opened takes focus after a route change (review L3)', async ({ page, request }) => {
-    await seed(request);
+    const manifest = await seed(request);
     await page.goto(`${workspace}#/images`);
     await expect(heading(page)).toHaveText('Images');
     await page.evaluate(() => { window.location.hash = '#/collection/999999'; });
@@ -499,7 +505,8 @@ test('a page that says a collection or view could not be opened takes focus afte
     await page.route('**/prompt_manager/saved-views', route => route.request().method() === 'GET'
         ? route.fulfill({ status: 500, contentType: 'application/json', body: '{"success":false,"error":"x"}' })
         : route.fallback());
-    await page.evaluate(() => { window.location.hash = '#/saved/5'; });
+    // An id the seed never made (its one view is manifest.saved_view), whatever ids earlier tests used (#520).
+    await page.evaluate(id => { window.location.hash = `#/saved/${id}`; }, manifest.saved_view.id + 1000);
     await expect(description(page)).toHaveText('Saved views could not be loaded. Your saved data has not changed.');
     await expect(heading(page)).toBeFocused();
 });