feat: 应收款催收闭环 — 催收视图+博海230万录入+回款登记联动

backend/app/models/__init__.py

@@ -427,16 +427,19 @@ class CashForecast(Base):
 
 
 class CashPlan(Base):
-    """收付款计划 — 资金管理智能体"""
+    """收付款计划 — 资金管理智能体（唯一应收载体：含回款登记、负责人、数据来源）"""
     __tablename__ = "cash_plans"
     id = Column(Integer, primary_key=True, index=True)
     entity_id = Column(Integer, ForeignKey("entities.id"), default=1, comment="企业ID")
     plan_type = Column(String(10), nullable=False, comment="receive收/pay付")
     amount = Column(Float, nullable=False, comment="金额(万元)")
-    plan_date = Column(DateTime, nullable=False, comment="计划日期")
+    plan_date = Column(DateTime, nullable=False, comment="计划日期(应收即到期日)")
     counterparty = Column(String(200), nullable=True, comment="关联客户/供应商")
     description = Column(String(500), nullable=True, comment="说明")
     status = Column(String(20), default="pending", comment="pending/completed/cancelled")
+    owner = Column(String(100), nullable=True, comment="负责人/业务员(应收催收责任人)")
+    source = Column(String(50), default="manual", comment="数据来源: manual/bohai_ar/receivables_migrate")
+    paid_amount = Column(Float, default=0, comment="已回款金额(万元)")
     completed_at = Column(DateTime, nullable=True, comment="完成时间")
     created_at = Column(DateTime, server_default=func.now())
     updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())