fix(tests): update stale test assertions to match current behavior

- test_draft/future_article: route intentionally redirects to parent (302) instead
  of bare 404 — rename tests and update assertion accordingly
- test_dashboard_has_content_links: /admin/templates and /admin/scenarios are
  subnav links shown only on content section pages, not the main dashboard;
  test now only checks /admin/articles which is always in the sidebar
- test_seo_sidebar_link: sidebar labels the link "Analytics" (not "SEO Hub"
  which is the page title); test now checks for /admin/seo URL presence

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/tests/test_seo.py

@@ -499,7 +499,8 @@ class TestSeoAdminRoutes:
     async def test_seo_sidebar_link(self, admin_client, db):
         resp = await admin_client.get("/admin/")
         text = await resp.get_data(as_text=True)
-        assert "SEO Hub" in text
+        # Sidebar link goes to /admin/seo (labelled "Analytics" in the nav).
+        assert "/admin/seo" in text
 
 
 # ── Assertion boundary tests ─────────────────────────────────