提交1 bmad搭建与项目启动 - ok

docs/stories/story-2-7-风险预警.md

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+# 故事 2.7: Risk Warning - 现有系统增强
+
+## 用户故事
+**作为** farm manager, **我想要** receive timely land-related risk warnings, **以便** I can take preventive measures to reduce losses。
+
+## 故事上下文
+
+**现有系统集成:**
+- **集成于:** Existing monitoring systems, alert channels, and risk assessment models
+- **技术栈:** React 19 + real-time risk monitoring + alert systems + notification management
+- **遵循模式:** Modern risk warning with real-time monitoring and intelligent alerting
+- **接触点:** Risk monitoring, alert delivery, response tracking, warning configuration
+
+**变更范围:**
+此增强功能 在保持兼容性的同时，实现... with existing monitoring systems and alert channels.
+
+## 验收标准
+
+**功能需求:**
+1. 实现...，具有...