fix(aihr): clarify static incentive rules

frontend/src/views/competency/growth.vue

@@ -125,7 +125,7 @@
       <article class="panel">
         <div class="panel-title">
           <h2>学分规则最小集</h2>
-          <el-switch v-model="leaderboardEnabled" active-text="排行榜" inactive-text="默认关闭" />
+          <el-tag type="info" effect="plain">当前运营口径（只读）</el-tag>
         </div>
         <el-table :data="rules" size="small">
           <el-table-column prop="source" label="来源" width="130" />
@@ -160,7 +160,6 @@ import {
 const extPartyId = ref('');
 const selectedProjectCode = ref('');
 const loading = ref(false);
-const leaderboardEnabled = ref(false);
 const profile = ref<CompetencyProfile | null>(null);
 const evidence = ref<PromotionEvidence | null>(null);
 const alerts = ref<PracticeAlert[]>([]);