ci: 加固 sync-to-gitee（超时 + SSH keepalive + 重试）#82
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首次全量镜像（~131MB）跨境推送时 TCP 连接僵死，git push 无限挂起 36 分钟无进展。三层加固： - job timeout-minutes: 30，兜底不再挂满 6 小时 - ssh ServerAliveInterval/CountMax，~2 分钟内主动断开死连接报错 - push 失败自动重试 3 次（间隔 30s），断线后无需人工重跑 Signed-off-by: D.J. Zou <wwsb.bopy@gmail.com>
lywaterman
approved these changes
Jul 8, 2026
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背景
#81 合并后首次全量镜像推送（打包约 131MB）在
Push to Gitee步骤挂了 36 分钟无进展——跨境链路 TCP 连接僵死，git 会无限等待，且默认 job 超时是 6 小时。修改（三层兜底）
timeout-minutes: 30：job 级超时，最坏情况不再白挂 6 小时ServerAliveInterval 30×ServerAliveCountMax 4）：死连接约 2 分钟内被主动断开并报错，而不是无限挂起验证