fix: 二次迁移名额可列表展示，保存后跳转用户页

Co-authored-by: Cursor <cursoragent@cursor.com>

jituan/services/club_migrate.py

@@ -1110,3 +1110,50 @@ def serialize_token(token_row: ClubMigrateToken) -> dict:
         'expire_at': token_row.expire_at.isoformat() if token_row.expire_at else '',
         'asset_snapshot': token_row.asset_snapshot or {},
     }
+
+
+def lookup_migrate_user_brief(uid: str) -> dict:
+    """后台二次名额：校验用户并返回简要资料。"""
+    uid = str(uid or '').strip()
+    user = _load_user(uid)
+    if not user:
+        return {'exists': False, 'from_uid': uid, 'nicheng': '', 'phone': ''}
+    nicheng = ''
+    try:
+        ds = getattr(user, 'DashouProfile', None)
+        if ds and getattr(ds, 'nicheng', None):
+            nicheng = str(ds.nicheng)
+    except Exception:
+        pass
+    if not nicheng:
+        nicheng = str(getattr(user, 'UserName', '') or getattr(user, 'Phone', '') or '')
+    return {
+        'exists': True,
+        'from_uid': uid,
+        'nicheng': nicheng,
+        'phone': str(getattr(user, 'Phone', '') or ''),
+        'club_id': str(getattr(user, 'ClubID', '') or ''),
+    }
+
+
+def serialize_user_quota(row: ClubMigrateUserQuota, plan: Optional[ClubMigratePlan] = None, user_info: Optional[dict] = None) -> dict:
+    plan = plan or ClubMigratePlan.query.filter(plan_id=row.plan_id).first()
+    info = user_info if user_info is not None else lookup_migrate_user_brief(row.from_uid)
+    used = success_count(row.plan_id, row.from_uid)
+    allowed = max_allowed_success(plan, row.from_uid) if plan else (1 + int(row.max_extra_times or 0))
+    return {
+        'plan_id': row.plan_id,
+        'from_uid': row.from_uid,
+        'max_extra_times': int(row.max_extra_times or 0),
+        'reason': row.reason or '',
+        'updated_by': row.updated_by or '',
+        'created_at': row.CreateTime.isoformat() if row.CreateTime else '',
+        'updated_at': row.UpdateTime.isoformat() if row.UpdateTime else '',
+        'nicheng': info.get('nicheng') or '',
+        'phone': info.get('phone') or '',
+        'user_club_id': info.get('club_id') or '',
+        'success_count': used,
+        'max_allowed': allowed,
+        'remaining': max(0, int(allowed) - int(used)),
+        'can_migrate_again': used < allowed,
+    }