restructure: proper project layout, README, kill training

- cuda/ — main LBM kernel (khra_gixx_1024_v5.cu)
- navigator/ — lattice_observer, golden_weave, bridges, mock daemon
- scripts/ — compile, start, launch, setup (paths updated)
- docs/ — system manual
- archive/ — everything else (old kernels, inquiries, experiments)
- README.md — full setup guide: requirements, quick start, use your own LLM
- removed training/ entirely (broken LoRA scripts + datasets)
- .gitignore: exclude build/ logs/ training/ *.jsonl

archive/configs/light_beam.json

@@ -0,0 +1 @@
+{"question": "Navigator, shoot a virtual light beam through the grid. Track it. Is it moving at constant speed? Or does the lattice density, the stress, the vorticity change its path or velocity? Report what you observe."}