优化前后端权限一致性

frontend/src/views/fees/ContractFees.vue

@@ -80,7 +80,7 @@
             <el-button @click="resetFilters">{{ TEXT.common.actions.reset }}</el-button>
           </div>
           <div class="filter-spacer"></div>
-          <el-button type="primary" :disabled="!canWrite" @click="goNew" class="header-action-btn">
+          <el-button type="primary" :disabled="!canCreate" @click="goNew" class="header-action-btn">
             <el-icon class="el-icon--left"><Plus /></el-icon>
             {{ TEXT.modules.feeContracts.newTitle }}
           </el-button>
@@ -158,7 +158,7 @@
                 link
                 type="danger"
                 size="small"
-                :disabled="!canWrite || isInactiveSite(scope.row.center_id)"
+                :disabled="!canDelete || isInactiveSite(scope.row.center_id)"
                 @click.stop="remove(scope.row)"
               >
                 {{ TEXT.common.actions.delete }}
@@ -192,7 +192,8 @@ import { TEXT } from "../../locales";
 const router = useRouter();
 const study = useStudyStore();
 const { can } = usePermission();
-const canWrite = computed(() => can("fees.contract.write"));
+const canCreate = computed(() => can("fees.contract.create"));
+const canDelete = computed(() => can("fees.contract.delete"));
 
 const loading = ref(false);
 const errorMessage = ref("");
@@ -295,7 +296,7 @@ const onRowClick = (row: any) => {
 };
 
 const remove = async (row: any) => {
-  if (!row?.id || !canWrite.value) return;
+  if (!row?.id || !canDelete.value) return;
   if (isInactiveSite(row?.center_id)) {
     ElMessage.warning("中心已停用");
     return;