chore: CI流程加固+Schema检查门禁

- deploy.sh: 提交纪律检查(本地未提交修改→中止) + 冒烟测试(健康/登录/KPI/BOT/Schema)
- .woodpecker: 加前端typecheck+后端pytest测试步骤, backend-deploy加提交纪律检查
- 新增schema_check.py: ORM与数据库表结构一致性检查
- 修复budget_plans表缺3列(source_kpi_id/source_type/calc_logic)
- 附带入库: budget测试+文档

backend/app/models/budget_plan.py

@@ -17,6 +17,9 @@ class BudgetPlan(Base):
     budget_month = Column(Integer, nullable=False, comment="预算月份 1-12")
     version = Column(String(20), default="v1.0", comment="版本号 v1.0/v2.0")
     status = Column(String(20), default="active", comment="active/archived")
+    source_type = Column(String(50), nullable=True, comment="来源类型: manual/kpi_generated/roll_forward等")
+    source_kpi_id = Column(Integer, nullable=True, comment="来源KPI ID（KPI推算生成时记录）")
+    calc_logic = Column(Text, nullable=True, comment="预算计算逻辑说明")
     remark = Column(String(500), nullable=True, comment="备注")
     created_by = Column(String(100), nullable=True)
     created_at = Column(DateTime, server_default=func.now())