feat: 复盘结果持久化 — 大PDCA Act闭环(P1, yanxue-review-persistence)

- review_records表+模型(entity_id多租户)
- API: POST/GET/GET:id /maps/{id}/review-records
- 前端: MapReview 保存复盘结论弹窗+历史记录时间线(并发agent完成主体, 本项目补齐script逻辑)
- 验证: POST 200保存成功/GET列表/跨企业404/pytest 11 passed/构建部署

backend/app/models/__init__.py

@@ -273,6 +273,22 @@ class StrategicMapVersion(Base):
     created_at = Column(DateTime, server_default=func.now())
 
 
+class ReviewRecord(Base):
+    """复盘记录 — 战略回顾会/运营复盘会结论持久化（大PDCA Act闭环 2026-08-27）"""
+    __tablename__ = "review_records"
+    id = Column(Integer, primary_key=True, index=True)
+    entity_id = Column(Integer, default=1, comment="企业ID (多租户隔离 2026-08-27)")
+    map_id = Column(Integer, ForeignKey("strategic_maps.id", ondelete="CASCADE"), nullable=False, comment="关联战略地图")
+    review_type = Column(String(20), default="quarterly", comment="monthly/quarterly 月度运营复盘/季度战略回顾")
+    review_date = Column(Date, nullable=False, comment="复盘日期")
+    summary = Column(Text, nullable=False, comment="复盘结论（为什么没达成/怎么调整）")
+    adjustments = Column(JSON, nullable=True, comment="调整项JSON [{type,target,action}]")
+    next_priorities = Column(JSON, nullable=True, comment="下阶段优先级 [str,...]")
+    created_by = Column(Integer, nullable=True, comment="创建人用户ID")
+    created_at = Column(DateTime, server_default=func.now())
+    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())
+
+
 class MapObjective(Base):
     """战略地图目标: 每个维度下的具体目标"""
     __tablename__ = "map_objectives"