Add subcontractor attendees to event tracker for field ops

Subcontractor calendar events often go unlogged, so you can't verify vendor attendance. Log and update event records so coordinators confirm crews and vendors ahead of jobs, same day.

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Overview

When subcontractors are added or changed on job events, coordinators need one reliable record to confirm attendance and assign crews. This flow captures those attendees and writes or updates a central job record so your team can verify vendors and prepare crews same day.