emrg: escape PowerShell braces in stop_tui ps_cmd (Windows emrg stop crash)

Agent.md

@@ -118,7 +118,7 @@ Community needs voiced in HN agent-UI discussions map directly to EMRG's design:
 pkill -f "emrg.server"; rm -f ~/.emrg/emrgd.port; python -m emrg
 ```
 
-Python: `uv run pytest tests/ -v` (868) — import check: `uv run python -c "from emrg.client.app import run_client"`
+Python: `uv run pytest tests/ -v` (869) — import check: `uv run python -c "from emrg.client.app import run_client"`
 GUI: `cd emrg/gui && npm test` (257: 45 daemon_client + 19 conn-manager + 22 app-commands + 129 renderer smoke + 16 i18n + 7 integration + 3 commands + 7 build-config + 7 gui-state + 2 tool-group) — syntax: `node --check main.js preload.js daemon_client.js renderer/js/*.js`
 CI: `uv run pytest` (ubuntu + **windows-2025 matrix** — Windows pytest 回归在 PR CI 即失败，v0.2.29 教训 #725) + GUI tests + **actionlint workflow lint** (`rhysd/actionlint@v1.7.12` gate, #444 — workflow 解析错误在 PR CI 即失败，如 `if:` secrets 上下文)
 Re-trigger: `scripts/re-trigger-ci.sh [branch]` (workflow_dispatch, #527 — 替代空 commit 重触发：Actions outage 会整段丢弃 push 事件，dispatch 走 API 路径不受影响)

emrg/_stop_all.py

@@ -353,13 +353,16 @@ def stop_tui() -> None:
  (same contract as the POSIX branch's ``own_pid`` exclusion)."""
  if is_win():
  own = os.getpid()
+ # Literal PowerShell script-block braces must be escaped as {{ }} —
+ # otherwise str.format() treats them as replacement fields and raises
+ # ValueError: unexpected '{' in field name at runtime on Windows.
  ps_cmd = (
  "Get-CimInstance Win32_Process | "
- "Where-Object { $_.ProcessId -ne {own} -and "
+ "Where-Object {{ $_.ProcessId -ne {own} -and "
  "$_.Name -match '^python(\\.exe|w\\.exe)?$' -and "
  "$_.CommandLine -match '-m emrg' -and "
- "$_.CommandLine -notmatch 'emrg\\.server' } | "
- "ForEach-Object { Stop-Process -Id $_.ProcessId -Force }"
+ "$_.CommandLine -notmatch 'emrg\\.server' }} | "
+ "ForEach-Object {{ Stop-Process -Id $_.ProcessId -Force }}"
  ).format(own=own)
  subprocess.run(
  ["powershell", "-NoProfile", "-Command", ps_cmd],

tests/test_stop_all.py

@@ -165,6 +165,40 @@ def test_main_exits_with_code(self, monkeypatch):
  assert exc.value.code == 1
 
 
+class TestStopTuiPsTemplate:
+ """Windows stop_tui() must render its PowerShell template without raising.
+
+ Regression: the template's literal script-block braces (``Where-Object {``
+ / ``ForEach-Object {``) were fed to str.format() unescaped, raising
+ ValueError: unexpected '{' in field name at runtime on Windows — crashing
+ `emrg stop` before stop_bundled_git + verify ever ran. The existing
+ TestStopAllExitCode monkeypatches stop_tui entirely, so CI never rendered
+ the template; this test pins the render path itself.
+ """
+
+ def test_stop_tui_renders_ps_template_win(self, monkeypatch):
+ import os
+
+ calls: list = []
+ monkeypatch.setattr(_stop_all, "is_win", lambda: True)
+ monkeypatch.setattr(
+ _stop_all.subprocess, "run",
+ lambda cmd, **kw: calls.append(cmd) or type("CP", (), {})(),
+ )
+
+ _stop_all.stop_tui() # must not raise ValueError
+
+ assert len(calls) == 1
+ cmd = calls[0]
+ assert cmd[0] == "powershell"
+ ps = cmd[-1]
+ # invoking-PID exclusion substituted into the template
+ assert f"-ne {os.getpid()}" in ps
+ # literal PowerShell script-block braces survived the format() call
+ assert "Where-Object { $_.ProcessId" in ps
+ assert "ForEach-Object { Stop-Process" in ps
+
+
 class TestMainDelegatesToStopAll:
  def test_emrg_stop_cli_exits_nonzero(self):
  """`emrg stop` must sys.exit with the stop_all() code (installer gate)."""