style(名字): 名字列按去掉 ks 前缀后的长度收窄，不再留一大块空

原来的定宽是按 ks2312李鑫楠 定的（110～170px），现在名字最长 4 个字（在读的班 423 人里 5 人）。
只放名字的列收到 80px 左右；混着几个班、名字后面还有班号的（全部提交、全服 / 年级排名、
卡点分析没选班时）108px，最宽的「翁鑫叶炫 2312」95px 也放得下。改了提交列表、排名赛道和周榜、
比赛排名和成绩、题单全班情况、数据统计、后台自学情况和卡点分析、请假名单

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/web/src/admin/analytics/components/StuckDetail.vue

@@ -205,7 +205,7 @@ const links = computed(() => {
         <div class="muted small">交得最多的</div>
         <div class="names">
           <div v-for="row in mostTries" :key="row.username" class="nrow">
-            <UserName :username="row.username" class="uname" />
+            <UserName :username="row.username" :class-name="className ? null : row.className" short-class class="uname" :class="{ 'with-class': !className }" />
             <span class="num strong ntries">交了 {{ row.tries }} 次</span>
             <span class="muted num">{{ gap(row.minutes) }}</span>
             <span class="grow" />
@@ -243,7 +243,7 @@ const links = computed(() => {
       </div>
       <div class="names">
         <div v-for="row in stuckStudents" :key="row.username" class="nrow">
-          <UserName :username="row.username" class="uname" />
+          <UserName :username="row.username" :class-name="className ? null : row.className" short-class class="uname" :class="{ 'with-class': !className }" />
           <span class="muted num ntries">交了 {{ row.tries }} 次</span>
           <span class="legend" :style="{ color: resultColor(row.lastResult) }">
             <i :style="{ background: resultColor(row.lastResult) }" />{{ resultName(row.lastResult) }}
@@ -450,10 +450,14 @@ const links = computed(() => {
   font-size: 13px;
   min-width: 0;
 }
+/* 名字最长 4 个字；没选班（全部班级）时名字后面还有班号（2026-11 去掉 ks 前缀之前是按 ks2312李鑫楠 定的宽） */
 .uname {
-  width: 110px;
+  width: 80px;
   flex-shrink: 0;
 }
+.uname.with-class {
+  width: 108px;
+}
 .ntries {
   width: 64px;
   flex-shrink: 0;

apps/web/src/admin/learn/ExerciseAttempts.vue

@@ -22,7 +22,7 @@ const desktopColumns: DataTableColumn<LearnExerciseAttempt>[] = [
   {
     title: '学生',
     key: 'username',
-    width: 140,
+    width: 100,
     render: (row) => h(UserName, { username: row.username }),
   },
   {

apps/web/src/admin/learn/ProblemReaders.vue

@@ -49,7 +49,7 @@ const desktopColumns: DataTableColumn<ProblemReader>[] = [
   {
     title: '学生',
     key: 'username',
-    width: 150,
+    width: 100,
     render: (row) => h(UserName, { username: row.username }),
   },
   { title: '结果', key: 'result', width: 150, render: renderResult },

apps/web/src/admin/learn/index.vue

@@ -503,8 +503,9 @@ onMounted(load)
   padding-bottom: 6px;
   border-top: 0;
 }
+/* 名字最长 4 个字，表头「每课打开过」5 个小字也放得下（2026-11 去掉 ks 前缀之前是按 ks2312李鑫楠 定的宽） */
 .c-name {
-  width: 110px;
+  width: 80px;
   flex-shrink: 0;
   white-space: nowrap;
   overflow: hidden;
@@ -756,7 +757,7 @@ onMounted(load)
     position: sticky;
     left: 0;
     z-index: 1;
-    width: 96px;
+    width: 72px;
     margin-left: -16px;
     padding-left: 16px;
     background: v-bind('theme.bodyColor');