Fix display voice prompts requiring browser unlock and failed acks.

Add tap-to-enable speech overlay, stop marking announcements played on TTS errors, pick voices by locale, and scope pending announcements to the display's queues.

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

app/Services/Qms/DisplayService.php

@@ -55,8 +55,8 @@ class DisplayService
             ->where('status', 'completed')
             ->whereDate('issued_at', today())
             ->whereNotNull('called_at')
-            ->selectRaw('AVG(TIMESTAMPDIFF(SECOND, issued_at, called_at)) as avg_wait')
-            ->value('avg_wait');
+            ->get(['issued_at', 'called_at'])
+            ->avg(fn (Ticket $t) => $t->called_at->diffInSeconds($t->issued_at));
 
         return [
             'screen' => [
@@ -71,7 +71,10 @@ class DisplayService
                 'prefix' => $q->prefix,
                 'is_paused' => $q->is_paused,
             ]),
-            'announcements' => app(VoiceAnnouncementService::class)->pendingForBranch((int) $screen->branch_id),
+            'announcements' => app(VoiceAnnouncementService::class)->pendingForBranch(
+                (int) $screen->branch_id,
+                array_map('intval', $screen->service_queue_ids ?? []),
+            ),
             'updated_at' => now()->toIso8601String(),
         ];
     }