fix(pwsh): close the remaining review threads
- scrubbedParentEnv folds case before the DSH_ prefix check (Windows env
names are case-insensitive; a parent dsh_* entry read back as \*
in the child) and the service spec pins the lowercase probe.
- The acp.snapshot.ts pwsh probe follows resolvePwshPath() like the package
suites, so a Windows host with only an install-location pwsh still runs
the scenario.
- pwsh-tool-turn is re-recorded around [Console]::Out.Write('PWSH_OK'):
the fixture carries no platform newline, so one recording replays on
Windows and POSIX alike (record + refresh; replay-verified keyless).
- The pwsh-local Known Limitations bullet drops the self-defeating no-op
advice: & { } is scoped to param(...), using/#requires scripts run from a
file (both languages, pairing re-recorded).
- The capability-seams graph moves ctx.bashEnv ownership to bash-env and
lists pwsh-local/tool-pwsh on the ctx.bash seam (source updated,
docs regenerated).
- The tool-bash presenter fixture retires the stale 'command aborted'
literal for the shipped 'tool call aborted' message.
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@@ -50,6 +50,6 @@
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- **命令字符串是 PowerShell 文本**——`-Command` 域没有 shell 引号层,但面向模型的命令由 PowerShell 自己解析,因此 PowerShell 语法错误是命令失败,而非启动失败。
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- **后台 spawn 失败提示只投递一次**——subprocess 服务不会为从未运行的进程缓冲输出,因此执行器只把 `spawn failed: …` 注入一次 `readOutput()` 增量;丢弃该增量的读取方无法恢复它。
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- **Windows 终止不报告信号**——被强制终止的进程以退出码 1、`signal: null` 结束,因此基于信号的状态分类(POSIX `killed`)在 Windows 上不适用;`kill()` 发起的停止仍会直接盖上 `killed`。
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- **编码 preamble 位于命令之前**——PowerShell 要求 `param(...)`、`#requires` 与 `using namespace`/`using assembly` 语句位于脚本最顶部,因此以其中一种开头的命令无法在 UTF-8 输出 preamble 下运行;请先用无操作语句(或 `& { … }`)开头。
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- **编码 preamble 位于命令之前**——PowerShell 要求 `param(...)`、`#requires` 与 `using namespace`/`using assembly` 语句位于脚本最顶部,因此以其中一种开头的命令无法在 UTF-8 输出 preamble 下运行。`param(...)` 脚本可包进 `& { … }`(param 块可以合法地位于脚本块开头);`using` 语句与 `#requires` 在命令内没有变通办法(`#requires` 在 `-Command` 中无论位置如何都不生效)——此类脚本请改从文件运行。
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清理启发式与 spill 保留的注意事项由 [`dsh-subprocess-local`](../../subprocess/subprocess-local/README.md) 持有,它拥有这些机制。
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