New run-all command auto-discovers experiments/*.ts and orchestrates
the full pipeline: fingerprint reuse, failure classification,
auto-retry of infra failures, and housekeeping.
Housekeeping runs after each experiment: keeps only the latest valid
result per (experiment, eval) pair, removes duplicates and incomplete
results, cleans up empty timestamp directories.
Supports --dry (preview), --force (ignore fingerprints), --smoke
(1 eval per experiment), and optional experiment name/glob arguments.
Jude Gao