Session swap makes attribution automatic via request.env.user — the
tablet_tech_id plumbing is dead code after the kiosk + per-tech-session
architecture lands. Removed kwarg from 3 endpoints in
manager_controller, 11 in shopfloor_controller, 3 in
workspace_controller. _tablet_audit.env_for_tablet_tech import gone
from all 3 files.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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