feat(admin-stock): apply idempotent availability deltas

app/Domains/Ticketing/FiestaFutbolInfantil/Requests/UpsertAccommodationVariantsRequest.php

@@ -16,11 +16,13 @@ class UpsertAccommodationVariantsRequest extends FormRequest
     {
         return [
             'variants' => ['required', 'array', 'min:1', 'max:500'],
-            'variants.*' => ['required', 'array:id,title,description,stock,price'],
+            'stock_adjustment_id' => ['nullable', 'uuid'],
+            'variants.*' => ['required', 'array:id,title,description,stock,stock_difference,price'],
             'variants.*.id' => ['sometimes', 'nullable', 'integer', 'distinct'],
             'variants.*.title' => ['required', 'string', 'max:255'],
             'variants.*.description' => ['sometimes', 'nullable', 'string'],
             'variants.*.stock' => ['required', 'integer', 'min:0'],
+            'variants.*.stock_difference' => ['nullable', 'integer'],
             'variants.*.price' => ['required', 'numeric', 'min:0', 'max:99999999.99'],
         ];
     }