Reimplements PR #86 independently (author abandoned it after change-requests),
with the review feedback applied — the original tests asserted behavior the
code never had.
#84 — add @snowluma/common unit tests:
- hex: toHex/toHexUpper/hexPreview boundary + fromHex round-trip & odd-length throw
- log-summary: summarizeParams (top-level primitive is String()'d WITHOUT quotes;
fields quoted; nested collapsed; total cap) and renderParamsVerbose (redaction,
long-string marker is the Unicode ellipsis '…<N B>' not ASCII '...', circular guard)
- request-context: nextRequestId monotonic; runWithRequestId sync/async + nested scopes
- root scripts test:common/test:all/coverage; coverage/ gitignored
#85 — Utf8Validator: the second surrogate check was unreachable (within the
0x80–0xBF continuation-byte guard, 'b & 0x20' is true iff 'b >= 0xA0'); merge to
one check. No behavior change.
common suite green (26 tests).
DrSmoothl