Repair: copy legacy joinDate into new user's created_at when creating users from legacy wallz

app/Http/Controllers/Api/Messaging/PresenceController.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Http\Controllers\Api\Messaging;
+
+use App\Http\Controllers\Controller;
+use App\Models\Conversation;
+use App\Services\Messaging\MessagingPresenceService;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+
+class PresenceController extends Controller
+{
+    public function __construct(
+        private readonly MessagingPresenceService $presence,
+    ) {}
+
+    public function heartbeat(Request $request): JsonResponse
+    {
+        $conversationId = $request->integer('conversation_id') ?: null;
+
+        if ($conversationId) {
+            $conversation = Conversation::query()->findOrFail($conversationId);
+            $this->authorize('view', $conversation);
+        }
+
+        $this->presence->touch($request->user(), $conversationId);
+
+        return response()->json([
+            'ok' => true,
+            'conversation_id' => $conversationId,
+        ]);
+    }
+}