test_skillscan_env_launcher.py and test_channels.py put payloads of up to
52 KB directly in parametrize values, so pytest's generated item ids exceed
the 32767-character Windows environment-variable limit: PYTEST_CURRENT_TEST
raises ValueError at setup and teardown even though the products under test
behave correctly, and the giant ids flood -q reports.
The skillscan linearity test additionally spawned one child process per
chain. A fresh child spends 9-18 s importing the skills stack before the
4-168 ms scan, so its fixed 10 s timeout measured the import instead of the
scan and flipped to subprocess.TimeoutExpired on a loaded host.
Give the oversized cases short explicit ids, scan every chain in one child
process fed through stdin, and enforce the linearity bound on each scan
inside that child (5 s) while a 60 s outer timeout covers the import.
* fix(skillscan): classify env command launchers
* fix(skillscan): bound and correct env launcher parsing
Resolve env split strings iteratively with bounded work, preserving critical
findings on limit exhaustion. Tokenize each simple command in place and keep
quoted argv words distinct from adjacent redirection operators.
Honor env assignments after option markers, GNU split-string escapes, absolute
env paths, command/exec/sudo wrappers, and the non-exiting --debug option. Scope
stdin overrides to the pipeline consumer. Add 60 parser and scan regressions,
including recursion, many-command, and deep-group deadline cases.
---------
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
