Fix display board to one ticket per counter

Filter now-serving to the latest called/serving ticket per destination so historical calls no longer crowd the public board, and scale ticket cards so numbers no longer clip destination text.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Services/Qms/DisplayService.php

@@ -34,19 +34,25 @@ class DisplayService
             ->orderBy('name')
             ->get();
 
+        // One active ticket per destination (counter). Older called/serving
+        // tickets at the same window must not crowd the public board.
         $nowServing = Ticket::query()
             ->whereIn('service_queue_id', $queueIds)
             ->whereIn('status', ['called', 'serving'])
             ->with(['counter', 'serviceQueue'])
             ->orderByDesc('called_at')
-            ->limit(12)
+            ->limit(48)
             ->get()
+            ->unique(fn (Ticket $t) => $t->counter_id
+                ? 'counter:'.$t->counter_id
+                : 'queue:'.$t->service_queue_id)
+            ->take(12)
+            ->values()
             ->map(fn (Ticket $t) => [
                 'ticket_number' => $t->ticket_number,
                 'queue_name' => $t->serviceQueue?->name,
                 'counter' => $t->counter?->name,
             ])
-            ->values()
             ->all();
 
         $waiting = Ticket::query()