- Add skip_candidate() helper that emits fitness=0 JSON to stdout and
tracks the failed score for the output-dir file, satisfying the
downstream scorer's expectation of one JSON line per candidate.
- Unify all failure paths (transpile, forge build, bytecode extract,
empty bytecode) through skip_candidate() with a distinct error key.
- Log message now reads "WARNING: <id> compile failed — scoring as 0"
as required by the acceptance criteria.
- Output-dir scores.jsonl now merges successful + failed scores so the
file is complete even when some candidates fail to compile.
- All-candidates-fail path (COMPILED_COUNT=0) still exits 2 (no viable
population); true infra errors (missing tool, bad RPC) unchanged.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
a23064f576