Initial Ladill Queue release — enterprise QMS standalone app.

Phases 1–6: tickets, counters, displays, appointments, workflows, rules, analytics, reports, feedback, admin, device API, and Gitea deploy workflow for queue.ladill.com.

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

app/Services/Qms/DeviceService.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Services\Qms;
+
+use App\Models\Device;
+use App\Models\Ticket;
+use Illuminate\Support\Str;
+
+class DeviceService
+{
+    public function findByToken(string $token): ?Device
+    {
+        return Device::query()
+            ->where('device_token', $token)
+            ->first();
+    }
+
+    public function recordHeartbeat(Device $device): void
+    {
+        $device->update([
+            'status' => 'online',
+            'last_online_at' => now(),
+        ]);
+    }
+
+    public function markStaleOffline(int $minutes = 10): int
+    {
+        return Device::query()
+            ->where('status', 'online')
+            ->where(function ($q) use ($minutes) {
+                $q->whereNull('last_online_at')
+                    ->orWhere('last_online_at', '<', now()->subMinutes($minutes));
+            })
+            ->update(['status' => 'offline']);
+    }
+
+    public function generateToken(Device $device): string
+    {
+        $token = Str::random(48);
+        $device->update(['device_token' => $token]);
+
+        return $token;
+    }
+}