All intermediate build artifacts (binaries, live-build work dirs, overlay
stages, NVIDIA/NCCL/cuBLAS/john caches) now live under dist/cache/.
Final ISOs go to dist/release/ instead of scattered dist/easy-bee-v*/ and iso/out/.
dist/ is already gitignored, iso/out/ entry removed as redundant.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Auto-detects build mode: remote VM if BUILDER_HOST is set in .env,
local Docker otherwise. Cache hardcoded to dist/container-cache (gitignored).
All flags forwarded to build-in-container.sh.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>