refactor(tickets): move cluster/status/window filters beside the KPIs

Fold the filter controls into the INC overview card, right-aligned next to the
metric tiles, and remove the standalone filter bar — better visual balance
(fills the previously empty right side of the overview row).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/index.html

@@ -222,6 +222,12 @@
   .sla-ok       { color: var(--live); }
   .sla-unknown  { color: var(--muted); }
 
+  /* INC overview row: metric tiles (left) + filters (right) on one balanced row */
+  .tk-overview-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px 28px; flex-wrap: wrap; }
+  .tk-overview-metrics { min-width: 0; }
+  .tk-filters { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; margin-left: auto; }
+  .tk-filters .ff select, .tk-filters .ff input { min-width: 130px; }
+
   /* Live vehicle DOM marker (ported from FleetNow) */
   .veh-marker { cursor: pointer; will-change: transform; }
   .veh-inner { position: relative; width: 32px; height: 32px; transform: scale(var(--veh-scale, 1)); transform-origin: center center; }
@@ -384,7 +390,14 @@
   </section>
 
   <section class="view" id="view-tickets">
-  <div class="filterbar">
+  <main id="tk-main">
+    <div class="card span12">
+      <div class="tk-overview-row">
+        <div class="tk-overview-metrics">
+          <h2>INC overview <span class="count" id="tk-fresh"></span></h2>
+          <div class="metric-row" id="tk-metrics"><div class="empty">Loading…</div></div>
+        </div>
+        <div class="tk-filters">
           <div class="ff">
             <label for="tk-cluster">Cluster</label>
             <select id="tk-cluster"><option value="">All clusters</option></select>
@@ -407,11 +420,7 @@
           <button class="btn" id="tk-apply" type="button">Apply</button>
           <button class="btn ghost" id="tk-refresh" type="button" title="Reload">↻</button>
         </div>
-
+      </div>
-  <main id="tk-main">
-    <div class="card span12">
-      <h2>INC overview <span class="count" id="tk-fresh"></span></h2>
-      <div class="metric-row" id="tk-metrics"><div class="empty">Loading…</div></div>
     </div>
 
     <div class="card span12">