feat: ship creator journey v2 and profile updates

app/Observers/ArtworkFavouriteObserver.php

@@ -7,6 +7,7 @@ namespace App\Observers;
 use App\Jobs\RecComputeSimilarByBehaviorJob;
 use App\Jobs\RecComputeSimilarHybridJob;
 use App\Models\ArtworkFavourite;
+use App\Services\Profile\CreatorJourneyService;
 use App\Services\UserStatsService;
 use Illuminate\Support\Facades\DB;
 
@@ -18,6 +19,7 @@ class ArtworkFavouriteObserver
 {
     public function __construct(
         private readonly UserStatsService $userStats,
+        private readonly CreatorJourneyService $journeys,
     ) {}
 
     public function created(ArtworkFavourite $favourite): void
@@ -25,6 +27,7 @@ class ArtworkFavouriteObserver
         $creatorId = $this->creatorId($favourite->artwork_id);
         if ($creatorId) {
             $this->userStats->incrementFavoritesReceived($creatorId);
+            $this->journeys->requestRebuild($creatorId);
         }
 
         // §7.5 On-demand: recompute behavior similarity when artwork reaches threshold
@@ -36,6 +39,7 @@ class ArtworkFavouriteObserver
         $creatorId = $this->creatorId($favourite->artwork_id);
         if ($creatorId) {
             $this->userStats->decrementFavoritesReceived($creatorId);
+            $this->journeys->requestRebuild($creatorId);
         }
     }