Four-dossier workflow synthesis: the engine half of BOTH render paths
(DPLRenderer/libDPL for the division-card 3D view; the L4 gauge stack for
the cockpit instruments) ALREADY compiles and links into btl4opt.exe from
the CODE originals, and the emulator's VPX board-side device is
EXE-agnostic (pure wire-level). What's missing is game-TU work with
complete BT411 donors: the 6 gauge TUs (~302 fns, the first rendered
milestone -- diffable against the shipped exe on the same GAUGE content)
and then btl4vid (the 3D world renderable factory). Full protocol map,
env gates, and the staged plan in RENDER-ROADMAP.NOTES.md.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
