Strip SLO from frontend: remove _renderSlos, sloRoot param, slo-* CSS,

and the 'Stale' tile (which was derived from the SLO freshness count).
Backend still computes slo_status for future use; UI just ignores it.

web/fleet-core.js

@@ -318,12 +318,11 @@ function _popupHtml(props) {
 
 /* ---------- render ---------- */
 
-export function renderView(map, payload, { summaryRoot, sloRoot } = {}) {
+export function renderView(map, payload, { summaryRoot } = {}) {
   if (!payload || !payload.geojson) return;
   const src = map.getSource(VEHICLE_SOURCE);
   if (src) src.setData(payload.geojson);
   if (summaryRoot) _renderSummary(summaryRoot, payload.summary || {});
-  if (sloRoot) _renderSlos(sloRoot, payload.slo_status || {});
 }
 
 function _renderSummary(root, summary) {
@@ -332,7 +331,6 @@ function _renderSummary(root, summary) {
     { label: 'Moving',  value: summary.moving ?? '—' },
     { label: 'Parked',  value: summary.parked ?? '—' },
     { label: 'Offline', value: summary.offline ?? '—' },
-    { label: 'Stale',   value: summary.below_freshness_slo ?? '—' },
   ];
   root.innerHTML = tiles
     .map(t => `
@@ -342,25 +340,6 @@ function _renderSummary(root, summary) {
       </div>`).join('');
 }
 
-function _renderSlos(root, slos) {
-  const entries = Object.entries(slos);
-  if (entries.length === 0) {
-    root.innerHTML = '<div class="slo-empty">SLO data not yet available</div>';
-    return;
-  }
-  root.innerHTML = entries.map(([metric, info]) => {
-    const status = info.status || 'unknown';
-    const current = info.current ?? '—';
-    const threshold = info.threshold ?? '—';
-    return `
-      <div class="slo slo-${status}">
-        <span class="slo-name">${metric}</span>
-        <span class="slo-value">${current} / ${threshold}</span>
-        <span class="slo-status">${status}</span>
-      </div>`;
-  }).join('');
-}
-
 /* ---------- filters (multi-select dropdowns) ---------- */
 
 /**

web/index-live.html

@@ -35,7 +35,7 @@
     }
     button.logout:hover { color: var(--text); border-color: var(--text); }
 
-    /* ─────────── top dashboard band: tiles + slos + filters ─────────── */
+    /* ─────────── top dashboard band: tiles + filters ─────────── */
     .top-band {
       display: grid;
       grid-template-columns: minmax(260px,1fr) minmax(280px,auto);
@@ -58,18 +58,6 @@
     .tile-label { font-size: 9px; letter-spacing: 0.06em; color: var(--muted); text-transform: uppercase; }
     .tile-value { font-size: 18px; font-weight: 600; line-height: 1.1; }
 
-    .slo {
-      display: grid; grid-template-columns: 1fr auto auto; gap: 8px;
-      padding: 3px 8px; border-radius: 4px; font-size: 11px;
-      background: var(--panel-2);
-    }
-    .slo-name { color: var(--muted); }
-    .slo-status { text-transform: uppercase; font-size: 9px; letter-spacing: 0.06em; }
-    .slo-green   .slo-status { color: var(--accent); }
-    .slo-red     .slo-status { color: var(--bad); }
-    .slo-unknown .slo-status { color: var(--muted); }
-    .slo-empty { color: var(--muted); font-size: 11px; }
-
     /* ─────────── multi-select filter widget ─────────── */
     .ms { position: relative; min-width: 180px; }
     .ms-btn {