#302: the vault import test reaches its page through the sidebar

The Obsidian fixture vault contains a note called "Startseite", and the
pond now creates one too — the seeded fixtures use locale `de`. Two
consequences, and the second is the one that mattered:

- the unscoped title locator matched two sidebar entries;
- `/p/<pond>/startseite` no longer belongs to the imported note. The
  pond's own start page took that slug, so the import landed on a
  suffixed one and the test was about to assert against the wrong page.

Both are fixed by scoping to the mount page and navigating through the
sidebar instead of guessing a slug. The test stays meaningful: it then
clicks a wikilink inside the page content, which the empty auto-created
start page would not have.

CI caught this; the local run passed it. Worth remembering that a
title-based locator can go green by luck.

apps/web/e2e/import-vault.spec.ts

@@ -93,11 +93,19 @@ test('a pond admin imports an Obsidian vault through the settings dialog', async
   await expect(
     mountItem.locator('.sidebar__tree-children .sidebar__page', { hasText: 'Projekte' }),
   ).toBeVisible();
-  await expect(page.locator('.sidebar__page:text-is("Startseite")')).toBeVisible();
+  // Scoped to the mount: the pond has its own "Startseite" since issue #302,
+  // so an unscoped title match now finds two entries.
+  const importedHome = mountItem
+    .locator('.sidebar__tree-children .sidebar__page')
+    .filter({ hasText: /^Startseite$/ })
+    .first();
+  await expect(importedHome).toBeVisible();
 
   // A rewritten Obsidian link navigates to the right imported page, and the
-  // display text still reads like the original note name.
-  await page.goto(`/p/${pond.slug}/startseite`);
+  // display text still reads like the original note name. Reached through the
+  // sidebar rather than by slug — `/startseite` belongs to the pond's own
+  // start page, so the imported note landed on a suffixed slug.
+  await importedHome.click();
   await page.locator('.editor-content a.wikilink', { hasText: 'Projekt A' }).click();
   await expect(page).toHaveURL(new RegExp(`/p/${pond.slug}/projekt-a$`));