feat: implement city weather detail API routing, dashboard data models, and monitoring infrastructure
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@@ -21,6 +21,33 @@
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- 仅当当前温度距 DEB 预测最高 ≤3°C 时推送
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- 确认过峰值后自动停止
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## 前端市场监控 freshness 契约
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后端城市详情接口会在 `current.freshness` / `airport_current.freshness` 返回源感知更新时间信息,前端市场监控不再用统一的 `obs_age_min` 判断所有城市。
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关键字段:
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```json
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{
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"source_code": "amos",
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"source_label": "AMOS",
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"observed_at": "2026-05-14T11:59:10+00:00",
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"observed_at_local": "20:59",
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"native_update_interval_sec": 60,
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"expected_next_update_at": "2026-05-14T12:00:10+00:00",
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"freshness_status": "fresh",
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"freshness_reason": "within_native_fresh_window",
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"age_sec": 50
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}
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```
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前端刷新规则:
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- 首次进入市场监控:强制刷新全部城市,绕过 30 分钟前端缓存。
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- 定时轮询:仍以 60s tick 检查,但只刷新已到 `expected_next_update_at`、`delayed`、`stale` 或缺失的城市。
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- BFF 代理:`force_refresh=true` 时使用 `no-store`,避免 Next fetch revalidate 缓存吞掉强刷。
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- 展示:卡片 tooltip 显示源端名称、原生更新间隔和当前 freshness 状态。
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## 消息模板
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```
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