fix(acl): keep empty draft rules and clarify OR/AND hint

Empty rules were stripped on re-parse so Add rule looked broken; editor now keeps drafts until filled.

apps/web/src/components/DataAccessPolicyPanel.vue

@@ -10,7 +10,6 @@ import {
   DATA_ACCESS_SECTION_LABELS,
   DATA_ACCESS_SECTIONS,
   emptySectionDataAccess,
-  parseDataAccessPolicy,
 } from '@mento/shared';
 import { api } from '@/lib/api';
 import { useCustomerGroups } from '@/lib/customer-groups';
@@ -57,15 +56,21 @@ watch(
   { immediate: true },
 );
 
-const policy = computed(() => parseDataAccessPolicy(props.modelValue));
-
+/** بدون parse سخت‌گیرانه تا قانون خالیِ در حال ویرایش پاک نشود */
 function sectionValue(key: DataAccessSection): SectionDataAccess {
-  return policy.value[key] ?? emptySectionDataAccess();
+  const raw = props.modelValue?.[key];
+  if (raw && typeof raw === 'object') {
+    return {
+      mode: raw.mode === 'rules' ? 'rules' : 'all',
+      rules: Array.isArray(raw.rules) ? raw.rules.map((r) => ({ ...r })) : [],
+    };
+  }
+  return emptySectionDataAccess();
 }
 
 function setSection(key: DataAccessSection, next: SectionDataAccess) {
   emit('update:modelValue', {
-    ...policy.value,
+    ...props.modelValue,
     [key]: next,
   });
 }