- Stderr banner on fallback now multi-line with concrete fix steps
(nix develop → node rust-engine/scripts/build.js --dev) so an operator
scanning a 280MB cycle log can't miss it. The old single-line warning
was easy to overlook (today's "WHY HAS NOBODY SEEN IF LOUD" check).
- Structured load record per process at .sf/runtime/native-engine-load.jsonl:
{ts, pid, platformTag, source, binaryPath, sha256, loaded, errors?}.
Lets operators audit which binary each SF process loaded — and detect
ABI mismatches across daemon↔worker boundaries when different sha256
values appear for the same platformTag (the "rare but real" concern
flagged earlier today).
- Proxy error message now points to the build/install commands instead
of just saying "not available". NativeUnavailableError is named for
consumer try/catch chains.
- Fixed _loadedSuccessfully ordering — was set true BEFORE the require,
leaving stale-true after a failed first attempt.
- New helpers isNativeLoaded(), nativeBinaryPath(), nativeBinarySha256()
for diagnostic surfaces (sf headless query, doctor checks).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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