Defer profile world history until needed

app/Http/Controllers/User/ProfileController.php

@@ -63,6 +63,8 @@ use Inertia\Inertia;
 
 class ProfileController extends Controller
 {
+    private const SSR_WORLD_HISTORY_TABS = ['achievements', 'worlds'];
+
     private const PROFILE_TABS = [
         'posts',
         'artworks',
@@ -207,6 +209,26 @@ class ProfileController extends Controller
         ]);
     }
 
+    /**
+     * Read-only world history payload for profile tabs that are loaded client-side.
+     * This deliberately does not render the profile document or track a view.
+     */
+    public function worldHistory(Request $request, string $username): JsonResponse
+    {
+        $normalized = UsernamePolicy::normalize($username);
+        $user = User::query()->whereRaw('LOWER(username) = ?', [$normalized])->first();
+
+        if (! $user) {
+            return response()->json(['error' => 'User not found'], 404);
+        }
+
+        $isOwner = Auth::check() && Auth::id() === $user->id;
+
+        return response()->json($isOwner
+            ? $this->worldProfileHistory->ownerPayloadForUser($user)
+            : $this->worldProfileHistory->publicPayloadForUser($user));
+    }
+
     public function legacyById(Request $request, int $id, ?string $username = null)
     {
         $user = User::query()->findOrFail($id);
@@ -1292,9 +1314,11 @@ class ProfileController extends Controller
             ->all();
         $achievementSummary = $this->achievements->summary((int) $user->id);
         $worldRewardSummary = $this->worldRewards->summaryForUser($user);
-        $worldHistory = $isOwner
-            ? $this->worldProfileHistory->ownerPayloadForUser($user)
-            : $this->worldProfileHistory->publicPayloadForUser($user);
+        $worldHistory = in_array($initialTab, self::SSR_WORLD_HISTORY_TABS, true)
+            ? ($isOwner
+                ? $this->worldProfileHistory->ownerPayloadForUser($user)
+                : $this->worldProfileHistory->publicPayloadForUser($user))
+            : null;
         $leaderboardRank = $this->leaderboards->creatorRankSummary((int) $user->id);
         $groupContributionHistory = $this->buildGroupContributionHistory($user);
         $journey = $this->creatorJourney->publicPayloadForUser($user);