feat(plugins): Traefik problems first, UniFi/SNMP/fleet on shared shapes, audit names its entities, templates on tokens (#5126)

Traefik: routers are graded from their latest scrape (router_state: crit on
any real 5xx share, warn on p95 past the latency critical cutoff or a high
4xx share). Failing and slow routers lead as cards that say why; healthy
ones fold into one table that stays open or shut across polls. Proxy
counts are stat tiles; certificates are graded by Settings -> Thresholds
(tls_days).

UniFi: WAN health is a stat strip (latency graded by the thresholds),
devices carry status dots, event categories and firewall actions are
badges, the alarm count reuses .count-badge (renamed from .nav-count).
SNMP: each device wears a status badge and its readings are stat tiles.

Agent fleet: the table comes first, with a Status column (Reporting /
Silent / Never reported, by the host page's stale_after_seconds), silent
agents first, hosts linked, last seen as |ago.

Audit: entries name their entity (one query per type, steward/audit/
service.py) and link it; something deleted since keeps the name its entry
recorded and says "(deleted)".

Tokens: charts read colours through chart-colors.js (stewardColor resolves
a token to the rgb the browser computed; Chart.js defaults take the page's
text and border colours), so host, history, Traefik and SNMP charts drop
their hex. Template hex colours reach 0 (HEX_CEILING = 0), the last rgba
pills go, and heavy weights (600/700/bold, 60 of them) become 500, the
house pair being 400/500; a guard keeps templates there.

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

steward/templates/dashboard/list.html

@@ -22,7 +22,7 @@
           <div style="display:flex;align-items:center;gap:0.75rem;">
             <div style="flex:1;min-width:0;">
               <div style="display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap;">
-                <a href="/d/{{ dash.id }}" style="font-weight:600;font-size:0.9rem;">{{ dash.name }}</a>
+                <a href="/d/{{ dash.id }}" style="font-weight:500;font-size:0.9rem;">{{ dash.name }}</a>
                 {% if dash.is_default %}
                 <span class="badge badge-gold" style="font-size:0.68rem;">Your Default</span>
                 {% endif %}
@@ -36,7 +36,7 @@
 
               <details style="position:relative;">
                 <summary class="btn btn-ghost btn-sm" style="cursor:pointer;list-style:none;">Rename</summary>
-                <div style="position:absolute;right:0;top:calc(100% + 4px);background:var(--bg-card);border:1px solid var(--border-mid);border-radius:6px;padding:0.75rem;z-index:50;width:220px;box-shadow:0 4px 16px rgba(0,0,0,0.4);">
+                <div style="position:absolute;right:0;top:calc(100% + 4px);background:var(--bg-card);border:1px solid var(--border-mid);border-radius:6px;padding:0.75rem;z-index:50;width:220px;box-shadow:var(--fs-shadow-3);">
                   <form method="post" action="/dashboards/{{ dash.id }}/rename" style="display:flex;gap:0.4rem;">{{ csrf_field() }}
                     <input type="text" name="name" value="{{ dash.name }}"
                            style="flex:1;font-size:0.85rem;padding:0.3rem 0.5rem;" required>
@@ -83,7 +83,7 @@
           <div style="display:flex;align-items:center;gap:0.75rem;">
             <div style="flex:1;min-width:0;">
               <div style="display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap;">
-                <a href="/d/{{ dash.id }}" style="font-weight:600;font-size:0.9rem;">{{ dash.name }}</a>
+                <a href="/d/{{ dash.id }}" style="font-weight:500;font-size:0.9rem;">{{ dash.name }}</a>
                 {% if dash.owner_id is none %}
                 <span class="badge badge-dim" style="font-size:0.68rem;">System</span>
                 {% endif %}