fix: 组队结单后罚款仍按队员均摊

商家常在结单后申请罚款，招募已是结束态；现含已结束组队，并从结算流水兜底还原队员。

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

orders/services/team_recruit.py

@@ -741,35 +741,75 @@ def settle_team_or_legacy(order, *, set_idle_leader=False) -> bool:
     return True
 
 
-def maybe_split_penalties(*, order_id: str, total_amount, reason: str, applicant_id, applicant_identity,
-                          affects_grabbing=1, club_id='', extra_fields=None) -> Optional[list]:
+def _team_members_for_penalty_split(order_id: str):
     """
-    若有有效组队（锁定或招募中已有队友），为每人创建罚单并返回列表；否则返回 None 走原逻辑。
+    取本单应均摊罚款的组队成员。
+    含招募中/已锁定/已结束（商家多在结单后申请罚款；结单会把招募置为已结束）。
+    取消/作废的组队不均摊。
     """
-    from orders.models import TeamRecruit, TeamMember, Penalty
-    from decimal import Decimal as D
+    from orders.models import TeamRecruit, TeamMember, TeamSettleLedger
 
-    rec = TeamRecruit.query.filter(
-        order_id=order_id,
-        status__in=[TeamRecruit.STATUS_RECRUITING, TeamRecruit.STATUS_LOCKED],
-    ).first()
+    oid = (order_id or '').strip()
+    if not oid:
+        return None, []
+    rec = (
+        TeamRecruit.query.filter(
+            order_id=oid,
+            status__in=[
+                TeamRecruit.STATUS_RECRUITING,
+                TeamRecruit.STATUS_LOCKED,
+                TeamRecruit.STATUS_FINISHED,
+            ],
+        )
+        .order_by('-id')
+        .first()
+    )
     if not rec:
-        return None
+        return None, []
     members = list(
         TeamMember.query.filter(recruit_id=rec.id, join_status=TeamMember.JOIN_ACTIVE)
     )
-    if len(members) < 2:
+    # 结单后偶发清退：用同单结算流水还原参与人
+    if len(members) < 2 and int(rec.status or 0) == TeamRecruit.STATUS_FINISHED:
+        ledger_uids = list(
+            TeamSettleLedger.query.filter(order_id=oid)
+            .values_list('user_uid', flat=True)
+            .distinct()
+        )
+        if len(ledger_uids) >= 2:
+            members = list(TeamMember.query.filter(recruit_id=rec.id, user_uid__in=ledger_uids))
+            if len(members) < 2:
+                # 无成员行时，用流水 UID 构造轻量对象供均摊
+                class _M:
+                    def __init__(self, uid, role):
+                        self.user_uid = uid
+                        self.role = role
+                leader = rec.leader_uid or ''
+                members = [
+                    _M(u, TeamMember.ROLE_LEADER if u == leader else TeamMember.ROLE_MEMBER)
+                    for u in ledger_uids
+                ]
+    return rec, members
+
+
+def maybe_split_penalties(*, order_id: str, total_amount, reason: str, applicant_id, applicant_identity,
+                          affects_grabbing=1, club_id='', extra_fields=None) -> Optional[list]:
+    """
+    若有组队且至少 2 人在队（含结单后已结束），为每人创建罚单并返回列表；否则返回 None 走原逻辑。
+    """
+    from orders.models import Penalty
+    from decimal import Decimal as D
+
+    rec, members = _team_members_for_penalty_split(order_id)
+    if not rec or len(members) < 2:
         return None
 
     total = _d(total_amount)
     k = len(members)
+    # 队长优先拿尾差
+    members.sort(key=lambda m: 0 if getattr(m, 'role', '') == 'leader' else 1)
     base = (total / D(k)).quantize(MONEY, rounding=ROUND_DOWN)
     amounts = [base] * k
-    amounts[0] = _d(total - base * (k - 1))  # 尾差给列表第一人（队长优先排前面）
-
-    # 队长优先
-    members.sort(key=lambda m: 0 if m.role == TeamMember.ROLE_LEADER else 1)
-    amounts = [base] * k
     amounts[0] = _d(total - base * (k - 1))
 
     reason_text = f'【组队均摊】{reason or ""}'