Searcher: each track independently tracks when it was last searched
via data/track_history.json. New tracks get full lookback (90d),
existing tracks look back since their last completion. Keyword-level
crash resume preserved.
Profiles: search tracks can specify profile_overrides (inline) or
profile_path (external file) to customize resume, cover letter, and
experience per track. Filter and applier both use the track-specific
profile. Base profile.json provides shared info (name, contact, etc).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
