feat(monitors): Monitors absorbs the Status page; Status is removed (#5270)

Status repeated the Monitors page's counts, check strip and uptime. Monitors
now has one header row and every column Status had: the last 30 checks,
latest response with its trend, uptime over 24h / 7d / 30d (the range picker
goes) and TLS days on every row. /status and /status/rows and the nav link
are removed outright; the dashboard Overview (/status/widget) stays and its
Details link goes to Monitors.

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

tests/core/test_status_page.py

@@ -1,13 +1,11 @@
-"""The Status page says what is wrong, and since when, before anything else
-(#5120)."""
+"""How long a monitor has been in its state (#5120). The Status page that
+first showed it was folded into Monitors (#5270)."""
 from datetime import datetime, timedelta, timezone
 from types import SimpleNamespace
 
 import pytest
-from quart import render_template
 
-from steward.core.status import StatusEntry, streak_start
-from tests.test_style_tokens import hex_colours
+from steward.core.status import streak_start
 
 T0 = datetime(2026, 10, 6, 18, 0, tzinfo=timezone.utc)
 
@@ -26,45 +24,3 @@ def _checks(*ups):
 def test_streak_start(ups, since, at_least):
     checks = _checks(*ups)
     assert streak_start(checks) == ((checks[since].checked_at if since is not None else None), at_least)
-
-
-async def _rows(app, entries, alerts):
-    async with app.test_request_context("/status/rows"):
-        return await render_template(
-            "status/rows.html", entries=entries, alerts=alerts,
-            problems=[e for e in entries if e.status == "down"],
-            up=sum(e.status == "up" for e in entries), down=sum(e.status == "down" for e in entries), pending=0)
-
-
-async def test_the_problems_come_first_and_say_since_when(app):
-    now = datetime.now(timezone.utc)
-    entries = [
-        StatusEntry(kind="http", key="1", name="shop-api", target="https://shop/x", status="down",
-                    since=now - timedelta(minutes=12), uptime={"24h": 93.0}, tls_days=2.0),
-        StatusEntry(kind="icmp", key="2", name="nas", target="10.0.0.5", status="up",
-                    since=now - timedelta(days=3), since_at_least=True, uptime={"24h": 100.0}),
-    ]
-    state = SimpleNamespace(state=SimpleNamespace(value="firing"), no_data_since=None,
-                            last_transition_at=now - timedelta(minutes=4))
-    rule = SimpleNamespace(id="r1", name="CPU high", resource_name="web01", metric_name="cpu_pct",
-                           operator=SimpleNamespace(value=">"), threshold=90)
-    page = await _rows(app, entries, [(state, rule)])
-
-    attention = page.index("Needs attention")
-    assert attention < page.index("Recent checks")              # before the full list
-    problem_card = page[attention:page.index("</section>")]
-    assert "shop-api" in problem_card and "nas" not in problem_card
-    assert "down since <time" in problem_card and ">12m ago</time>" in problem_card
-    assert "CPU high" in problem_card and "web01 CPU &gt; 90%" in problem_card and ">4m ago</time>" in problem_card
-    assert '<span class="badge badge-crit">Firing</span>' in problem_card
-    # Uptime and TLS coloured by Settings → Thresholds, not by literals.
-    assert '<span class="tone-crit">93.00%</span>' in page and '<span class="tone-ok">100.00%</span>' in page
-    assert 'class="tone-crit" title="TLS certificate expires in 2 days">2d' in page
-    assert not hex_colours(page), hex_colours(page)
-
-
-async def test_a_quiet_board_has_no_problem_card(app):
-    entries = [StatusEntry(kind="icmp", key="2", name="nas", target="10.0.0.5", status="up")]
-    page = await _rows(app, entries, [])
-    assert "Needs attention" not in page and "nas" in page
-    assert "No monitors yet" in await _rows(app, [], [])