Add support API scaffold

app/Http/Requests/Support/SupportWatermarkSettingsRequest.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Http\Requests\Support;
+
+use Illuminate\Contracts\Validation\ValidationRule;
+use Illuminate\Foundation\Http\FormRequest;
+
+class SupportWatermarkSettingsRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * @return array<string, ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            'asset' => ['sometimes', 'string'],
+            'position' => ['sometimes', 'string'],
+            'opacity' => ['sometimes', 'numeric', 'min:0', 'max:1'],
+            'scale' => ['sometimes', 'numeric', 'min:0.05', 'max:1'],
+            'padding' => ['sometimes', 'integer', 'min:0'],
+            'offset_x' => ['sometimes', 'integer', 'min:-500', 'max:500'],
+            'offset_y' => ['sometimes', 'integer', 'min:-500', 'max:500'],
+        ];
+    }
+}