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docs(adr): R2 范围与验收决策 (0009) - #259

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docs/r2-decisions
Oct 31, 2026
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JavaZeroo merged 1 commit into
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docs/r2-decisions

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新增 docs/adr/0009-r2-scope-decisions.md,把用户今天确认的五项决策固定下来:

# 决策
1 采用 margin 补丁版固定 ConPTY 作为 R2 产品后端(依据:175B 源在核心上与 required 一致,差异只在后端)
2 Server 2022 句柄基线改为记录制(#21 证据:平台每会话复制一个 Job 句柄,不是我们的)
3 性能预算采用回归型(相对基线),不设绝对值,不宣称与 WindTerm 性能等同
4 R2 不验收跨显示器迁移,限定单屏 96/144 DPI,跨屏推迟 R4
5 R2 交付 = 终端基础 + 已知差异清单,不宣称日常可用或对等

同时把"未知、不猜"的项(Qt Ctrl+字母、DECSTBM 归位、隐藏单元格复制、暗色/上划线渲染、DA/OSC 回复)逐条列出,避免以后被当成已确认行为。

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边界

  • 只写决策与依据,不宣称任何能力已验收;
  • 未修改现有 ADR-0006/0007/0008,本文作为补充记录。

Refs #34 #35 #41 #47 #54 #31 #21

…#35

Fixed ConPTY backend, record-only 2022 handle baseline, regression-style performance budgets, single display R2 scope and a delivery that names its known gaps.
@JavaZeroo
JavaZeroo merged commit 7bab40e into main Oct 31, 2026
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