Extract a YYYY-MM-DD date from a path like analysis/daily/2026-01-15/run. Falls back to the epoch date when no ISO date is embedded in the path.
YYYY-MM-DD
analysis/daily/2026-01-15/run
Repo-relative path of the run directory
ISO date string in YYYY-MM-DD form
Extract a
YYYY-MM-DDdate from a path likeanalysis/daily/2026-01-15/run. Falls back to the epoch date when no ISO date is embedded in the path.