Task A7. SO form Plating tab gets a new "Customer Reference /
Scheduling" block showing customer_job_number, planned_start_date,
internal_deadline, commitment_date (as Customer Deadline). Order line
tree in SO form now shows per-line part / coating / treatments /
deadline / rush. SO list view exposes customer job # and both
deadlines as togglable columns.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>