feat(widgets): Overview verdict, pending monitors' age, fullest filesystems first (#5810)

- Overview: a verdict line when something is wrong ('1 alert firing, 1
  monitor down.'); its picker description now says what it lists (alerts,
  monitors down, anomalies). Host figures have their home in Hosts.
  Comments no longer name the Status page that was folded into Monitors.
- Monitors widget: a monitor not checked yet says when it was added.
- Host page: filesystems fullest first, by the worse of space and inodes.

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

steward/templates/monitors/widget.html

@@ -27,7 +27,7 @@
       {% if session.user_id %}<a href="/monitors/{{ m.id }}">{{ m.name }}</a>{% else %}{{ m.name }}{% endif %}
       {%- if d.state == 'down' %}<span class="w-sub tone-crit">went down {{ d.down_since|ago if d.down_since else '' }}{% if d.down_reason %} · {{ d.down_reason }}{% endif %}</span>
       {%- elif d.state == 'degraded' %}<span class="w-sub tone-warn">{% if (d.latency or status_class(latest.response_ms, 'latency') if latest else none) == 'crit' %}slow replies{% else %}checks failing now and then{% endif %}</span>
-      {%- elif d.state == 'pending' %}<span class="w-sub">not checked yet</span>{% endif %}
+      {%- elif d.state == 'pending' %}<span class="w-sub">not checked yet{% if m.created_at %} · added {{ m.created_at|ago }}{% endif %}</span>{% endif %}
     </td>
     {% set lat = (d.latency or status_class(latest.response_ms, 'latency')) if latest and latest.is_up and latest.response_ms is not none else none %}
     <td class="{{ 'tone-' ~ lat if lat in ('warn', 'crit') }}"{% if d.latency_usual %} title="{{ d.latency_usual|capitalize }}"{% endif %}>

steward/templates/status/widget.html

@@ -30,6 +30,13 @@
   {% if entries %}✓ All {{ up }} monitors are up and no alert is firing.{% else %}No monitors configured, and no alert is firing.{% endif %}
 </div>
 {% else %}
+{# The verdict when something is wrong (#5810): what, in counts, worst first. #}
+{% set said = [] %}
+{% if firing %}{% set _ = said.append(firing|length ~ " alert" ~ ('' if firing|length == 1 else 's') ~ " firing") %}{% endif %}
+{% if down %}{% set _ = said.append(down ~ " monitor" ~ ('' if down == 1 else 's') ~ " down") %}{% endif %}
+{% if anomalies %}{% set _ = said.append(anomalies|length ~ " metric" ~ ('' if anomalies|length == 1 else 's') ~ " unusual") %}{% endif %}
+{% if pending %}{% set _ = said.append(pending ~ " monitor" ~ ('' if pending == 1 else 's') ~ " waiting for a first check") %}{% endif %}
+{% if said %}<div class="w-verdict {{ 'tone-crit' if firing or down else 'tone-warn' }}">{{ said|join(', ')|capitalize }}.</div>{% endif %}
 <div style="display:grid;gap:1px;">
   {% for a in alerts[:6] %}
   <div style="display:flex;align-items:center;gap:0.5rem;padding:0.2rem 0;font-size:0.82rem;">