feat: add EXEMPT type for rank-based immunity rules

- Opposite of kill rules: protects users instead of deleting them

- permRank: users at/above this rank permanently immune from all cleanups

- sealExemptRank: users at/above this rank won't be killed when sealed

- Green left border + green '\u4fdd\u53f7' label to visually distinguish from kill rules

- Template: Elite User for perm, Power User for seal exemption

web/src/views/RiskRules.vue

@@ -76,6 +76,7 @@
         <div v-if="parsed.length" style="display:flex;flex-direction:column;gap:10px">
           <div v-for="(rule, idx) in parsed" :key="idx"
             class="rule-card"
+            :style="rule.type==='EXEMPT'?'border-left-color:#67c23a':''"
             :draggable="true"
             @dragstart="onDragStart($event, idx)"
             @dragover.prevent="onDragOver($event, idx)"
@@ -91,9 +92,10 @@
                 </el-select>
                 <span v-if="rule.type==='TASK'" class="rule-fixed-text">考核周期 {{ rule.threshold }}天</span>
                 <span v-else-if="rule.type==='DRATIO'" class="rule-fixed-text">下载量 ≥ {{ rule.threshold }}GB 时分享率 ≥ {{ rule.minRatio }}</span>
+                <span v-else-if="rule.type==='EXEMPT'" class="rule-fixed-text">永久保留 ≥ {{ rule.permRank || '—' }} / 封存豁免 ≥ {{ rule.sealExemptRank || '—' }}</span>
                 <span v-else class="rule-fixed-text">{{ metricLabel(rule.metric) }} {{ condLabel(rule.condition) }} {{ rule.threshold }}{{ rule.unit || '' }}</span>
-                <span class="then-arrow">→</span>
-                <span style="color:#f56c6c;font-weight:600;font-size:13px">封号/删除账号</span>
+                <span class="then-arrow" :style="rule.type==='EXEMPT'?'color:#67c23a':''">→</span>
+                <span :style="rule.type==='EXEMPT'?'color:#67c23a;font-weight:600;font-size:13px':'color:#f56c6c;font-weight:600;font-size:13px'">{{ rule.type==='EXEMPT' ? '保号' : '封号/删除账号' }}</span>
               </div>
               <div class="card-header-right">
                 <span class="rule-index">#{{ idx + 1 }}</span>
@@ -137,6 +139,20 @@
                 </div>
               </template>
 
+              <!-- EXEMPT 等级豁免 -->
+              <template v-else-if="rule.type==='EXEMPT'">
+                <div class="field-row">
+                  <span class="field-label">永久保留等级</span>
+                  <el-input v-model="rule.permRank" size="small" placeholder="如：Elite User" @input="sync" style="width:200px" />
+                  <span class="field-hint">该等级及以上用户永久保留，不受任何清理规则影响</span>
+                </div>
+                <div class="field-row">
+                  <span class="field-label">封存豁免等级</span>
+                  <el-input v-model="rule.sealExemptRank" size="small" placeholder="如：Power User" @input="sync" style="width:200px" />
+                  <span class="field-hint">该等级及以上用户封存后不会被删除</span>
+                </div>
+              </template>
+
               <!-- 非 TASK：普通规则 -->
               <template v-else>
                 <div class="field-row">
@@ -163,7 +179,7 @@
     <!-- 预设规则导入对话框 -->
     <el-dialog v-model="showPresets" title="PT 站点管理规则模板" width="700px" :close-on-click-modal="false">
       <div style="margin-bottom:12px;padding:10px 14px;background:#f0f9ff;border-radius:6px;font-size:13px;color:#606266">
-        <p style="margin:0 0 4px;font-weight:500">规则体系：等级豁免 → 账号存活 → 流量监控 → H&R 惩罚 → 分享率检查</p>
+        <p style="margin:0 0 4px;font-weight:500">规则体系：等级豁免 → 账号存活 → 新人考核 → 流量监控 → H&R 惩罚 → 分享率</p>
         <p style="margin:0;font-size:12px;color:#909399">满足豁免条件的用户不受任何规则影响。系统会自动根据风险百分比触发告警（riskPct &gt; 80%）。</p>
       </div>
       <div v-for="cat in presetCategories" :key="cat.title" style="margin-bottom:12px">
@@ -174,7 +190,7 @@
             <el-checkbox :value="p.name" :label="p.name" style="margin-right:0;height:auto">
               <span style="font-weight:500;font-size:13px">{{ p.name }}</span>
             </el-checkbox>
-            <span style="color:#f56c6c;font-size:11px;font-weight:500">封号</span>
+            <span :style="p.type==='EXEMPT'?'color:#67c23a;font-size:11px;font-weight:500':'color:#f56c6c;font-size:11px;font-weight:500'">{{ p.type==='EXEMPT' ? '保号' : '封号' }}</span>
             <span style="color:#909399;font-size:11px;flex:1">{{ presetDesc(p) }}</span>
           </div>
         </el-checkbox-group>
@@ -200,6 +216,7 @@ const typeOptions = [
   { value: 'RATIO',   label: '分享率' },
   { value: 'TASK',    label: '新人考核' },
   { value: 'DRATIO',  label: '动态分享率' },
+  { value: 'EXEMPT',  label: '等级豁免' },
 ]
 const condOptions = [
   { value: 'GT',  label: '大于' },
@@ -257,6 +274,9 @@ const onTypeChange = (rule) => {
     rule.threshold = rule.threshold || 100
     rule.minRatio = rule.minRatio || 1.0
     rule.unit = 'GB'
+  } else if (rule.type === 'EXEMPT') {
+    rule.permRank = rule.permRank || ''
+    rule.sealExemptRank = rule.sealExemptRank || ''
   } else {
     const d = typeDefaults[rule.type]
     if (d) { rule.metric = d.metric; rule.condition = d.condition; rule.unit = d.unit }
@@ -281,6 +301,8 @@ const presets = [
   { name:'新人考核',           type:'TASK', threshold:30, unit:'天', description:'新注册用户需在考核周期内完成各项要求' },
   // 动态分享率
   { name:'动态分享率',         type:'DRATIO', threshold:100, minRatio:1.0, unit:'GB', description:'下载量达到阈值时分享率不低于要求值' },
+  // 等级豁免
+  { name:'等级豁免',           type:'EXEMPT', permRank:'Elite User', sealExemptRank:'Power User', description:'达到等级的账号可豁免清理' },
 ]
 
 const presetCategories = [
@@ -290,11 +312,13 @@ const presetCategories = [
   { title:'H&R 惩罚',           items: presets.filter(p => p.type === 'HD') },
   { title:'新人考核',           items: presets.filter(p => p.type === 'TASK') },
   { title:'分享率',             items: presets.filter(p => p.type === 'DRATIO') },
+  { title:'等级豁免',           items: presets.filter(p => p.type === 'EXEMPT') },
 ]
 
 const presetDesc = (p) => {
   if (p.type === 'TASK') return `考核周期 ${p.threshold||30} 天，需满足上传/下载/魔力值/做种积分/做种时间要求`
   if (p.type === 'DRATIO') return `下载量 ≥ ${p.threshold||100}GB 时分享率 ≥ ${p.minRatio||1.0}`
+  if (p.type === 'EXEMPT') return `永久保留 ≥ ${p.permRank||'—'} / 封存豁免 ≥ ${p.sealExemptRank||'—'}`
   const condLabel = condOptions.find(c => c.value === p.condition)?.label || p.condition
   const appLabel = applicableOptions.find(a => a.value === p.applicable)?.label || ''
   return `${metricOptions.find(m=>m.value===p.metric)?.label||p.metric} ${condLabel} ${p.threshold}${p.unit||''}${appLabel?' ('+appLabel+')':''}`