Lock and seal closed runs; feedback with the closing form; Home headlines link to their sections; drop the back link

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

Assistant: claude-code
Assistant-Model: sonnet
Assistant-Process: 295952@bnt-lap001
Assistant-Session: e93f64ad-516c-46eb-9666-aad8d300c477

tests/test_ui_projects.py

@@ -59,7 +59,7 @@ def make_project(s, pid="harbour", host=None):
 
 def test_index_has_projects_templates_runbooks_and_maturity(psrv):
     _, _, body = req(psrv, "GET", "/")
-    assert "<h1>Projects</h1>" in body and "Project templates" in body and "<h2>Runbooks</h2>" in body
+    assert "<h1 class=hl><a href='/projects'>Projects</a></h1>" in body and "Project templates" in body and "<a href='/runbooks'>Runbooks</a>" in body
     assert "/template/lighthouse-watch" in body
     assert ">draft<" in body                                    # maturity pill on every native runbook