fix(mobile): supervisor dashboard color semantics and polish

- workbench metrics: red only when value > 0 (was always red, even zeros)
- stable alert renders as calm green strip, not a clickable pink alarm card
- quick-entry header: drop duplicated member count
- header subtitle shows today's date
- team: low-risk member cards use neutral grey left bar (was red for all)
- team: 'normal' risk count is green (was red)
- team: difficulty sort chips flex-centered

mobile-uni/src/pages/supervisor/index/index.vue

@@ -3,7 +3,7 @@
     <view class="page-head">
       <view>
         <text class="page-title">主管工作台</text>
-        <text class="page-subtitle">住宅项目 · 今日训练与带教</text>
+        <text class="page-subtitle">住宅项目 · 今天 {{ todayLabel }}</text>
       </view>
       <button v-if="loggedIn && !accessDenied" class="ghost-button refresh-button" :disabled="loading" @click="loadPage">
         {{ loading ? '刷新中' : '刷新' }}
@@ -40,7 +40,7 @@
             v-for="item in supervisorMetrics"
             :key="item.key"
             class="metric-item"
-            :class="{ primary: item.primary, danger: item.key === 'lowScores' || item.key === 'alerts' }"
+            :class="{ attention: item.value > 0 && (item.primary || item.key === 'lowScores' || item.key === 'alerts') }"
           >
             <text class="metric-value">{{ item.value }}</text>
             <text class="metric-label">{{ item.title }}</text>
@@ -54,9 +54,9 @@
           <text class="panel-title">连续低分预警</text>
           <text class="muted">{{ actionableAlerts.length }} 条</text>
         </view>
-        <view v-if="alerts.length" class="alert-list">
+        <view v-if="actionableAlerts.length" class="alert-list">
           <button
-            v-for="item in alerts"
+            v-for="item in actionableAlerts"
             :key="`${item.type}-${item.title}`"
             class="alert-row"
             :class="item.severity"
@@ -69,6 +69,10 @@
             <text class="alert-arrow">›</text>
           </button>
         </view>
+        <view v-else-if="stableAlert" class="stable-strip">
+          <text class="stable-title">{{ stableAlert.title }}</text>
+          <text class="stable-desc">{{ stableAlert.desc }}</text>
+        </view>
         <view v-else class="empty compact-empty">暂无团队预警</view>
       </view>
 
@@ -96,7 +100,6 @@
       <view class="panel task-panel">
         <view class="section-head">
           <text class="panel-title">快捷入口</text>
-          <text class="muted">{{ teamCount }} 人</text>
         </view>
         <view class="task-list">
           <button class="task-row" @click="openPage('/pages/supervisor/team/index')">
@@ -177,6 +180,10 @@ const pendingAssignmentCount = computed(() =>
   supervisorMetrics.value.find((item) => item.key === 'pendingAssignments')?.value || 0);
 const pendingPreview = computed(() => pendingReviews.value.slice(0, 3));
 const actionableAlerts = computed(() => actionablePracticeAlerts(alerts.value));
+const stableAlert = computed(() => alerts.value.find((item) => item.type === 'stable'));
+const weekNames = ['周日', '周一', '周二', '周三', '周四', '周五', '周六'];
+const now = new Date();
+const todayLabel = `${now.getMonth() + 1}月${now.getDate()}日 ${weekNames[now.getDay()]}`;
 
 const clearData = () => {
   pendingReviews.value = [];
@@ -336,15 +343,15 @@ onUnload(invalidateRequests);
   background: #f8fbff;
 }
 
-.metric-item.primary {
+.metric-item.attention {
   background: #eef4ff;
 }
 
-.metric-item.primary .metric-value {
+.metric-item.attention .metric-value {
   color: var(--employee-primary);
 }
 
-.metric-item.primary .metric-label {
+.metric-item.attention .metric-label {
   color: var(--employee-primary);
 }
 
@@ -532,15 +539,12 @@ onUnload(invalidateRequests);
   box-shadow: 0 4px 14px rgba(24, 28, 36, 0.03);
 }
 
-.metric-item.primary,
-.metric-item.danger {
+.metric-item.attention {
   background: #ffffff;
 }
 
-.metric-item.primary .metric-value,
-.metric-item.primary .metric-label,
-.metric-item.danger .metric-value,
-.metric-item.danger .metric-label {
+.metric-item.attention .metric-value,
+.metric-item.attention .metric-label {
   color: #e60012;
 }
 
@@ -611,6 +615,28 @@ onUnload(invalidateRequests);
   color: #e60012;
 }
 
+.stable-strip {
+  margin-top: 10px;
+  padding: 14px 16px;
+  border-radius: 14px;
+  background: #f0fdf4;
+}
+
+.stable-title {
+  display: block;
+  color: #15803d;
+  font-size: 14px;
+  font-weight: 800;
+}
+
+.stable-desc {
+  display: block;
+  margin-top: 4px;
+  color: #4b5563;
+  font-size: 12px;
+  line-height: 1.45;
+}
+
 .preview-row {
   padding: 14px 0;
   border-width: 0 0 1px;

mobile-uni/src/pages/supervisor/team/index.vue

@@ -436,7 +436,7 @@ onUnload(invalidateRequests);
 }
 
 .risk-item.low .risk-value {
-  color: var(--employee-primary);
+  color: #16a34a;
 }
 
 .mistake-panel {
@@ -451,12 +451,16 @@ onUnload(invalidateRequests);
 }
 
 .difficulty-sort button {
+  display: flex;
+  align-items: center;
+  justify-content: center;
   min-height: 34px;
   padding: 0 10px;
   border: 1px solid #d7e0eb;
   background: #ffffff;
   color: var(--employee-muted);
   font-size: 12px;
+  line-height: 1;
 }
 
 .difficulty-sort button.active {
@@ -561,6 +565,10 @@ onUnload(invalidateRequests);
   border-left-color: #f59e0b;
 }
 
+.team-row.low {
+  border-left-color: #d7dde5;
+}
+
 .team-main {
   min-width: 0;
   flex: 1;