fix: add ownership-costs to migration order and improve error handling (refs #15)

- Add 'features/ownership-costs' to MIGRATION_ORDER in run-all.ts
- Improve OwnershipCostsList error display to not block the page
- Show friendly message when feature needs migration

backend/src/_system/migrations/run-all.ts

@@ -28,6 +28,7 @@ const MIGRATION_ORDER = [
   'features/user-profile',      // User profile management; independent
   'features/terms-agreement',   // Terms & Conditions acceptance audit trail
   'features/audit-log',         // Centralized audit logging; independent
+  'features/ownership-costs',   // Depends on vehicles and documents; TCO recurring costs
 ];
 
 // Base directory where migrations are copied inside the image (set by Dockerfile)

frontend/src/features/ownership-costs/components/OwnershipCostsList.tsx

@@ -84,9 +84,18 @@ export const OwnershipCostsList: React.FC<OwnershipCostsListProps> = ({
   }
 
   if (error) {
+    // Show a subtle message if the feature isn't set up yet, don't block the page
     return (
-      <div className="text-red-500 dark:text-red-400 text-sm p-4 bg-red-50 dark:bg-red-900/20 rounded-lg">
-        {error}
+      <div className="space-y-4">
+        <div className="flex justify-between items-center">
+          <h3 className="text-lg font-medium text-gray-900 dark:text-avus">
+            Recurring Costs
+          </h3>
+        </div>
+        <div className="text-sm text-gray-500 dark:text-titanio p-4 bg-gray-50 dark:bg-scuro rounded-lg border border-gray-200 dark:border-silverstone">
+          <p>Recurring costs tracking is being set up.</p>
+          <p className="text-xs mt-1 text-gray-400 dark:text-canna">Run migrations to enable this feature.</p>
+        </div>
       </div>
     );
   }