Align component groups, repair affected routing, and add preservation
audits.
Assign the confirmed U2 footprint and update pull-ups to 2 kΩ across
design files.
Document user acceptance, switch to an A3 worksheet, and refresh PCB
exports.
Separate operator guides from development contracts, relocate
implementation notes under `docs/devel/`, and update cross-references
and
hardware tooling paths. Add getting-started, user administration, and
firmware update guides while preserving firmware behavior.
Commander1024