feat(workspace): links to single bullets

- copy a link to a bullet from its action bubble or pick a bullet in the
  link dialog; [[Note#^id|Note › excerpt]] opens the note, jumps to and
  highlights the bullet, or says it is gone
- wiki links render inline with their label and are clickable; the
  duplicate chip below the text is gone

test(e2e): run each suite with its own container, image tag and port, so
parallel runs from another working copy no longer remove our server

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/src/lib/__tests__/wikiLink.test.ts

@@ -0,0 +1,21 @@
+import { describe, it, expect } from 'vitest';
+import { buildBlockLink, parseWikiLink, wikiLinkText } from '../wikiLink';
+
+describe('wiki links', () => {
+  it('parses plain, labelled, section and bullet links', () => {
+    expect(parseWikiLink('Homelab')).toEqual({ title: 'Homelab', blockId: undefined, label: undefined });
+    expect(parseWikiLink('Homelab|hier')).toEqual({ title: 'Homelab', blockId: undefined, label: 'hier' });
+    expect(parseWikiLink('Homelab#Abschnitt')).toEqual({ title: 'Homelab', blockId: undefined, label: undefined });
+    expect(parseWikiLink('Homelab#^blk_a_1|Homelab › Backup')).toEqual({
+      title: 'Homelab', blockId: 'blk_a_1', label: 'Homelab › Backup',
+    });
+  });
+
+  it('builds a bullet link that parses back', () => {
+    const link = buildBlockLink('Homelab [neu]', 'blk_x', 'Backups liefen bisher nur manuell – das soll sich ändern #backup');
+    expect(link).toBe('[[Homelab neu#^blk_x|Homelab neu › Backups liefen bisher nur manuell – das…]]');
+    const parsed = parseWikiLink(link.slice(2, -2));
+    expect(parsed.blockId).toBe('blk_x');
+    expect(wikiLinkText(parsed)).toBe('Homelab neu › Backups liefen bisher nur manuell – das…');
+  });
+});