fix: 修复选手列表重复问题 - 只查询registrationStatus=0的选手信息记录

根本原因：报名时会创建新的registrationStatus=1参赛记录，而查询选手列表时没有过滤，导致显示重复
解决方案：在查询选手列表时添加registrationStatus=0参数，只查询选手信息库

src/pages/add-team/add-team.vue

@@ -109,7 +109,8 @@ export default {
         const res = await athleteAPI.getAthleteList({
           current: 1,
           size: 100,
-          createUser: userInfo.userId
+          createUser: userInfo.userId,
+          registrationStatus: 0  // Only query player info records
         })
 
         let list = []

src/pages/event-register/event-register.vue

@@ -428,7 +428,8 @@ export default {
         const res = await athleteAPI.getAthleteList({
           current: 1,
           size: 100,
-          createUser: userInfo.userId
+          createUser: userInfo.userId,
+          registrationStatus: 0  // Only query player info records, not registration records
         })
 
         let list = res.records || (Array.isArray(res) ? res : [])