Add employee presence with kiosk sign-in, QR badges, and mobile step-out.

Enables staff roster, PIN/code kiosk flow, attendance reports, evacuation staff roll call, webhooks, branch mismatch warnings, and a linked-user My presence portal.

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

app/Models/EmployeePresenceEvent.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Models;
+
+use App\Models\Concerns\BelongsToOwner;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class EmployeePresenceEvent extends Model
+{
+    use BelongsToOwner;
+    public const EVENT_SIGN_IN = 'sign_in';
+
+    public const EVENT_SIGN_OUT = 'sign_out';
+
+    public const EVENT_STEP_OUT = 'step_out';
+
+    public const EVENT_STEP_IN = 'step_in';
+
+    protected $table = 'frontdesk_employee_presence_events';
+
+    protected $fillable = [
+        'owner_ref', 'organization_id', 'employee_id', 'event', 'status_after',
+        'branch_id', 'device_id', 'destination', 'step_out_reason', 'notes',
+    ];
+
+    public function employee(): BelongsTo
+    {
+        return $this->belongsTo(Employee::class, 'employee_id');
+    }
+}