feat(ui): a host's "Full metrics" heads its page, and a resource's anomalies are one line with a way to review them (#6797)

The host page's link to the full metrics sat in the Agent card, under the
anomaly card and the vitals strip, and was missed. It now heads the vitals
strip at the top of the page.

The anomaly card on the host, monitor, container and Traefik pages listed
every anomaly of the last 30 days with its review form, reviewed ones
included, and took over the top of the page. It is now one line: how many
wait for review, which are out of their normal now, and a Review button to
Alerts → Anomalies narrowed to that resource (?source=&resource=), where a
review returns. It is hidden when nothing waits and nothing is going on.
The callers fetch up to 100 rows so the count isn't capped at 10 or 20.

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

tests/core/test_host_page.py

@@ -70,7 +70,7 @@ async def test_the_agent_card_keeps_its_actions_under_manage(app):
             app, "host_agent", "panel.html", host=host, reg=reg, reporting=True, stale=False,
             target=target, ansible_available=True, managed_key_set=True)
     manage = page.index(">Manage agent</summary>")
-    assert page.index("Full metrics →") < manage
+    assert "Full metrics" not in page      # it heads the vitals strip, at the top of the page
     for action in (">Update agent</button>", ">Rotate token</button>", ">Unregister agent</button>"):
         assert page.index(action) > manage
     assert ">Remove</button>" not in page