feat(display): 分项成绩与个人榜也显示单位 logo（个人榜在姓名前）

- 服务端补下发：dto.EventResultRow 与 athleteStandingDTO 各加 logoPath，
  分别取「该行单位」与「该运动员所属单位」的 teams.logo_path；空串统一收敛为 null
- 大屏抽出 TeamLogo.vue（1em / object-fit:contain / 加载失败保留占位、@load 复原），
  原先在积分榜与团体奖牌榜各写一遍的逻辑收敛成一份，四处复用
- 分项成绩页：单位列名字前显示 logo；个人积分榜：运动员姓名前显示其单位 logo
- guards/mock 同步解析与补字段；补 11 条测试（类型解析 + SFC 模板断言）

顺带修：管理端示例数据 athleteStandings 缺新必填字段导致的 vue-tsc 报错。

自检：服务端 11 包全绿；前端 vue-tsc + build、node --test 80/80。

server/internal/realtime/snapshot.go

@@ -366,7 +366,7 @@ func loadLatestResults(ctx context.Context, tx *sql.Tx, snap *Snapshot) error {
 		       e.category_id, COALESCE(cat.name, ''),
 		       COALESCE(r.verified_at, r.recorded_at, r.updated_at, r.created_at, ''),
 		       r.entry_id, r.rank, e.team_id,
-		       COALESCE(t.code, ''), COALESCE(t.name, ''), COALESCE(t.short_name, ''),
+		       COALESCE(t.code, ''), COALESCE(t.name, ''), COALESCE(t.short_name, ''), t.logo_path,
 		       e.athlete_id, COALESCE(a.name, ''), COALESCE(e.member_names, ''),
 		       COALESCE(r.result_text, ''), r.result_value, COALESCE(r.unit, ''), r.is_tie, r.status
 		  FROM results r
@@ -401,11 +401,12 @@ func loadLatestResults(ctx context.Context, tx *sql.Tx, snap *Snapshot) error {
 			athleteID            sql.NullInt64
 			athleteName          string
 			shortName            string
+			logoPath             sql.NullString
 			memberNames          string
 			isTie                int
 		)
 		if err := rows.Scan(&eventID, &eventCode, &eventName, &categoryID, &categoryName, &publishedAt,
-			&row.EntryID, &rank, &row.TeamID, &row.TeamCode, &row.TeamName, &shortName,
+			&row.EntryID, &rank, &row.TeamID, &row.TeamCode, &row.TeamName, &shortName, &logoPath,
 			&athleteID, &athleteName, &memberNames,
 			&row.ResultText, &value, &row.Unit, &isTie, &row.Status); err != nil {
 			return fmt.Errorf("解析最新成绩: %w", err)
@@ -424,6 +425,7 @@ func loadLatestResults(ctx context.Context, tx *sql.Tx, snap *Snapshot) error {
 		}
 		row.AthleteName = nilIfEmpty(athleteName)
 		row.ShortName = nilIfEmpty(shortName)
+		row.LogoPath = nilIfEmpty(logoPath.String)
 		row.MemberNames = parseMemberNames(memberNames)
 		row.IsTie = isTie != 0