fix: trace-hook.ps1 - Copilot hooks under PowerShell on Windows no longer open the choose-an-app dialog (#164)

Files changed:
- CHANGES.md
- EVALS.md
- VERSION
- tools/README.md
- tools/chemenu/tests/test_preflight.py
- tools/chemenu/tests/test_preflight_pwsh.py
- tools/trace-hook
- tools/trace-hook.ps1

tools/trace-hook

@@ -16,6 +16,9 @@
 #
 # No venv yet - before the preflight has run - means no trace, silently. A hook
 # must never fail the call it observes.
+#
+# PowerShell on Windows never reaches this file: it resolves the same string to
+# trace-hook.ps1 next to it, which does the same.
 DIR=$(CDPATH='' cd -- "$(dirname -- "$0")" && pwd -P) || exit 0
 if [ -x "$DIR/.venv/bin/python" ]; then
   exec "$DIR/.venv/bin/python" "$DIR/trace_ingest.py" "$@"