Three tests in the shared acp-snapshot package hardcoded POSIX path
separators in their assertions, so they failed on Windows where
node:path.join produces backslash paths:
- childFixturePaths (suite.spec.ts): expected literal '/snap/s/session.1.jsonl'
but join returns '\snap\s\...' on Windows; use join() for the expected value.
- harness.spec.ts (env-forwarding test): substring-matched a JSON-encoded
path against raw stdout text, where backslash escaping makes the compare
byte-fragile; parse the env-probe chunk and compare the structured value.
- harness.spec.ts (harvested-cwd test): substring-matched the raw cwd
against JSONL text where the cwd is JSON-escaped; parse the session line
and compare the cwd field.
These were master's latent bugs (the package's tests never ran on Windows
until the Windows CI lane observed them). Verified green on Windows via
scripts/caohuanqi-private/run-ci.py --windows.