- group_fp_office_user now implies base.group_partner_manager so every office/
manager role can create contacts (Technicians excluded). Fixes the live
"create a company contact, it doesn't show" report (AccessError on save).
- New fp.rack.load + fp.rack.load.line models (multi-rack split at Racking,
Phase 1) with sequence, ACLs, equal-split math, and tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>