Three fixes from live feedback:
1. techOccupancy counted only jobs WITH a start_time → legacy osTicket jobs
(assigned, no appointment hour) showed as free (e.g. Houssam "40h libre"
with 6 jobs). Now untimed assigned jobs count toward busy (rendered as
hatched "unscheduled" blocks) and jobs match by technician_id OR docname.
techOccupancy also accepts CSV skills (require ALL) for multi-skill needs.
2. Support now maps to a 'support' skill (was []), so it lists only
support-skilled agents — techs with no skills set are excluded. Added
'support' to SKILL_VOCAB + DEPARTMENT_SKILLS.
3. AvailabilityByReason skills list is editable: auto-added skills (e.g.
'sans-fil' from wireless service address) can be removed per-chip when
not relevant. Bands + summary now reflect ALL selected skills.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>