`check:public-creds` has been failing on every open PR against release/v3.8.51,
twice over for the same literal:
✗ 1 entrada(s) obsoleta(s) na allowlist — zcodeProtocol.ts:302
✗ 1 credencial(is) pública(s) como string literal — zcodeProtocol.ts L313
Both are the same `clientId: \`omniroute-${process.pid}\`` in the local ZCode
handshake. Nothing regressed: the allowlist key is `file:line:value`, so an edit
that shifted the statement from 302 to 313 invalidated the frozen key and the
gate reported the entry as stale AND the literal as new.
Re-pointed the key and its comment. The literal itself is unchanged and still
frozen — the entry is not removed and the detector is not weakened (the gate's
own test still asserts that renaming the value to `upstream-client-` is flagged).
`tests/unit/check-public-creds.test.ts` synthesizes the source with a newline
count to land the statement on the allowlisted line; that count moves with it,
302 -> 313, so the test keeps pinning the real contract instead of a stale one.
Also documented the sharp edge inline: keying by line number means any edit near
this statement breaks the gate in two places at once, and the fix is to re-point
the line, never to drop the entry. Tightening the key to `file:value` would
remove the trap but widens what the entry freezes, so it is left as a note
rather than folded into a base-red drain.
check:public-creds OK (3 frozen literals), check-public-creds tests 20/20,
check:tracked-artifacts OK, prettier clean.
1baa8c3630