feat: Implement read cursor activity tracking and recent activity dashboard with context

app/Http/Controllers/DynamicController.php

@@ -8,6 +8,8 @@ use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
 use Illuminate\Http\Request;
 use Inertia\Inertia;
 
+use App\Services\ActivityService;
+
 class DynamicController extends Controller
 {
     use AuthorizesRequests;
@@ -44,10 +46,12 @@ class DynamicController extends Controller
     /**
      * Display the specified resource.
      */
-    public function show(Dynamic $dynamic)
+    public function show(Dynamic $dynamic, ActivityService $activityService)
     {
         $this->authorize('view', $dynamic);
 
+        $activityService->updateCursor(auth()->user(), $dynamic);
+
         $dynamic->load([
             'ledgers.media',
             'participants',