activity is now added when contract balance is changed

app/Http/Requests/UpdateContractSettingRequest.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class UpdateContractSettingRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'create_activity_on_balance_change' => ['sometimes', 'boolean'],
+            'default_action_id' => ['nullable', 'integer', 'exists:actions,id'],
+            'default_decision_id' => ['nullable', 'integer', 'exists:decisions,id'],
+            'activity_note_template' => ['nullable', 'string', 'max:255'],
+        ];
+    }
+}