Second python-seam restructure (sibling of .5): python emits US-delimited
findings (rel/lineno/token/suggestion/snippet); bash owns baseline parse
(strip mode), two-way set arithmetic, and byte-identical messages incl. the
did-you-mean hint and repo-relative baseline path. python3 failure is a loud
rc 2 naming the cause.
Differential evidence (byte stdout/stderr/exit, same injected AO bin): real
repo PASS w/ counts, new-offender FAIL w/ suggestion hint, baselined PASS,
stale FAIL — all parity. Twin 11/11 with fixture lib copy (FM5). seed.go
docsCliSnippetsPaths gains the lib (FM3).
Claude-Session: https://claude.ai/code/session_01RDWPYn4ZS2SyBkcBvAM18u