3740331b5b
Replace orientation <select> dropdown on setup/configure with the same visual two-button picker used in the SPA (SVG frame diagrams, ribbon indicator, active highlight). Hidden input carries the value on submit. Firmware: normal_operation() now calls show_setup_qr(mac) on 404 instead of epd_fill(COLOR_RED) — device shows scannable QR with its own MAC when not yet registered. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>