fix: 移除制度详情中手工发放grant_mode显示文本

frontend/src/views/module_payment/institution/components/InstitutionDetail.vue

@@ -33,7 +33,7 @@
             {{ detailData.effective_end_date || "-" }}
           </el-descriptions-item>
           <el-descriptions-item label="额度发放方式" :span="1">
-            {{ detailData.grant_mode === "period" ? "按固定周期" : detailData.grant_mode === "manual" ? "手工发放" : "-" }}
+            {{ detailData.grant_mode === "period" ? "按固定周期" : "-" }}
           </el-descriptions-item>
           <el-descriptions-item label="适用员工范围" :span="2">
             {{ formatScope(detailData.applicable_scope) }}