_call_fits_incident now returns (bool, signal_str) so each correlation
decision records exactly what evidence fired: unit_overlap, vehicle_overlap,
location_proximity, time_fallback, tactical_default, or the corresponding
false-return variants (unit_loc_conflict, content_divergence, etc.).
- corr_fit_signal and corr_matched_units written to call docs for
fast/single and fast/disambig paths
- Admin debug endpoint exposes the new fields in calls_detail
- Orphan section adds orphans_by_talkgroup summary (count, no-type count,
sweep-exhausted count per TGID) and raises orphan limit 100 → 250
- Admin page shows corr_path and fit_signal distribution panels above raw
JSON; time_fallback highlighted in yellow as a diagnostic marker
No correlation logic changed — diagnostic data only.
Logan