fix: 战略地图P0修复 — KPI code统一+放开同层连线+数据迁移

backend/app/models/__init__.py

@@ -214,6 +214,61 @@ class MapObjective(Base):
     created_at = Column(DateTime, server_default=func.now())
     updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())
 
+class KPICausality(Base):
+    """KPI因果链 — 记录KPI间的因果关系"""
+    __tablename__ = "kpi_causality"
+    id = Column(Integer, primary_key=True, index=True)
+    source_kpi_id = Column(Integer, ForeignKey("kpi_definitions.id"), nullable=False, comment="源KPI（因）")
+    target_kpi_id = Column(Integer, ForeignKey("kpi_definitions.id"), nullable=False, comment="目标KPI（果）")
+    strength = Column(Float, default=0.5, comment="影响强度 0~1")
+    lag_months = Column(Integer, default=1, comment="滞后期（月）")
+    formula = Column(String(500), nullable=True, comment="影响公式描述")
+    direction = Column(String(10), default="positive", comment="positive/negative 正向/负向影响")
+    created_at = Column(DateTime, server_default=func.now())
+    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())
+
+
+class KpiDataQualityLog(Base):
+    """数据质量监控日志"""
+    __tablename__ = "kpi_data_quality_log"
+    id = Column(Integer, primary_key=True, index=True)
+    kpi_id = Column(Integer, ForeignKey("kpi_definitions.id"), nullable=False, comment="关联KPI")
+    check_type = Column(String(30), nullable=False, comment="abnormal_change/flat_data/missing_data/value_outlier")
+    severity = Column(String(20), default="warning", comment="info/warning/critical")
+    detail = Column(JSON, nullable=True, comment="检测详情")
+    suggestion = Column(String(500), nullable=True, comment="建议操作")
+    status = Column(String(20), default="open", comment="open/resolved/ignored")
+    resolved_at = Column(DateTime, nullable=True)
+    created_at = Column(DateTime, server_default=func.now())
+
+
+class BiReportTemplate(Base):
+    """BI报表模板"""
+    __tablename__ = "bi_report_templates"
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String(200), nullable=False, comment="模板名称")
+    report_type = Column(String(50), nullable=False, comment="overview/trend/comparison/topn/causality")
+    config = Column(JSON, nullable=False, comment="报表配置")
+    is_system = Column(Integer, default=0, comment="系统预置模板")
+    created_by = Column(Integer, nullable=True)
+    created_at = Column(DateTime, server_default=func.now())
+    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())
+
+
+class BiReport(Base):
+    """用户保存的BI报表"""
+    __tablename__ = "bi_reports"
+    id = Column(Integer, primary_key=True, index=True)
+    template_id = Column(Integer, ForeignKey("bi_report_templates.id"), nullable=True)
+    name = Column(String(200), nullable=False, comment="报表名称")
+    config = Column(JSON, nullable=False, comment="报表配置（行/列/值）")
+    chart_type = Column(String(50), default="auto", comment="图表类型")
+    is_shared = Column(Integer, default=0, comment="是否分享")
+    created_by = Column(Integer, nullable=True)
+    created_at = Column(DateTime, server_default=func.now())
+    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())
+
+
 # 兼容性: P2开发新增的模板API需要的模型
 # KPIDefinition 已存在，KPITemplate映射到同一定义
 KPITemplate = KPIDefinition