refactor(admin-web): 用户详情页术语统一为"引荐"

- "直推" → "引荐"
- "推荐人" → "引荐人"
- "推荐关系" → "引荐关系"

涉及修改：
- 统计卡片：直推人数 → 引荐人数，活跃直推 → 活跃引荐
- 引荐人信息区域标签
- Tab 标签名称
- 引荐关系树标题和节点标签
- 空状态提示文案

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/admin-web/src/app/(dashboard)/users/[id]/page.tsx

@@ -32,7 +32,7 @@ import styles from './user-detail.module.scss';
 type TabType = 'referral' | 'planting' | 'wallet' | 'authorization';
 
 const tabs: { key: TabType; label: string }[] = [
-  { key: 'referral', label: '推荐关系' },
+  { key: 'referral', label: '引荐关系' },
   { key: 'planting', label: '认种信息' },
   { key: 'wallet', label: '钱包信息' },
   { key: 'authorization', label: '授权信息' },
@@ -248,23 +248,23 @@ export default function UserDetailPage() {
               </span>
             </div>
             <div className={styles.userDetail__statCard}>
-              <span className={styles.userDetail__statLabel}>直推人数</span>
+              <span className={styles.userDetail__statLabel}>引荐人数</span>
               <span className={styles.userDetail__statValue}>
                 {formatNumber(userDetail.referralInfo.directReferralCount)}
               </span>
             </div>
             <div className={styles.userDetail__statCard}>
-              <span className={styles.userDetail__statLabel}>活跃直推</span>
+              <span className={styles.userDetail__statLabel}>活跃引荐</span>
               <span className={styles.userDetail__statValue}>
                 {formatNumber(userDetail.referralInfo.activeDirectCount)}
               </span>
             </div>
           </div>
 
-          {/* 推荐人信息 */}
+          {/* 引荐人信息 */}
           {userDetail.referralInfo.referrerSequence && (
             <div className={styles.userDetail__referrerInfo}>
-              <span className={styles.userDetail__referrerLabel}>推荐人:</span>
+              <span className={styles.userDetail__referrerLabel}>引荐人:</span>
               <Link
                 href={`/users/${userDetail.referralInfo.referrerSequence}`}
                 className={styles.userDetail__referrerLink}
@@ -300,11 +300,11 @@ export default function UserDetailPage() {
 
         {/* Tab 内容 */}
         <div className={styles.userDetail__tabContent}>
-          {/* 推荐关系 Tab */}
+          {/* 引荐关系 Tab */}
           {activeTab === 'referral' && (
             <div className={styles.referralTab}>
               <div className={styles.referralTab__header}>
-                <h3>推荐关系树</h3>
+                <h3>引荐关系树</h3>
                 {treeRootUser !== accountSequence && (
                   <Button
                     variant="outline"
@@ -320,10 +320,10 @@ export default function UserDetailPage() {
                 <div className={styles.referralTab__loading}>加载中...</div>
               ) : referralTree ? (
                 <div className={styles.referralTree}>
-                  {/* 向上的推荐人链 */}
+                  {/* 向上的引荐人链 */}
                   {referralTree.ancestors.length > 0 && (
                     <div className={styles.referralTree__ancestors}>
-                      <div className={styles.referralTree__label}>推荐人链 (向上)</div>
+                      <div className={styles.referralTree__label}>引荐人链 (向上)</div>
                       <div className={styles.referralTree__nodeList}>
                         {referralTree.ancestors.map((ancestor, index) => (
                           <div key={ancestor.accountSequence} className={styles.referralTree__nodeWrapper}>
@@ -369,17 +369,17 @@ export default function UserDetailPage() {
                         认种: {formatNumber(referralTree.currentUser.personalAdoptions)}
                       </span>
                       <span className={styles.referralTree__nodeCount}>
-                        直推: {formatNumber(referralTree.currentUser.directReferralCount)}
+                        引荐: {formatNumber(referralTree.currentUser.directReferralCount)}
                       </span>
                     </div>
                   </div>
 
-                  {/* 直推用户 */}
+                  {/* 引荐用户 */}
                   {referralTree.directReferrals.length > 0 && (
                     <div className={styles.referralTree__directReferrals}>
                       <div className={styles.referralTree__connector}>↓</div>
                       <div className={styles.referralTree__label}>
-                        直推用户 ({referralTree.directReferrals.length})
+                        引荐用户 ({referralTree.directReferrals.length})
                       </div>
                       <div className={styles.referralTree__nodeGrid}>
                         {referralTree.directReferrals.map((referral) => (
@@ -397,7 +397,7 @@ export default function UserDetailPage() {
                             </span>
                             {referral.directReferralCount > 0 && (
                               <span className={styles.referralTree__nodeCount}>
-                                直推: {formatNumber(referral.directReferralCount)}
+                                引荐: {formatNumber(referral.directReferralCount)}
                               </span>
                             )}
                           </button>
@@ -407,11 +407,11 @@ export default function UserDetailPage() {
                   )}
 
                   {referralTree.directReferrals.length === 0 && referralTree.ancestors.length === 0 && (
-                    <div className={styles.referralTree__empty}>暂无推荐关系</div>
+                    <div className={styles.referralTree__empty}>暂无引荐关系</div>
                   )}
                 </div>
               ) : (
-                <div className={styles.referralTab__empty}>暂无推荐关系数据</div>
+                <div className={styles.referralTab__empty}>暂无引荐关系数据</div>
               )}
             </div>
           )}