0.1.3 packaging and setup fixes from what 0.1.x actually exposed.
- New Tools/ue_common.py: make_writable() clears the read-only bit an LFS .umap
checks out with (save_map() otherwise returns False silently and the staged actor
is lost) and require_saved() makes that failure visible. ue_hero_facade_import and
ue_import_north_buildings now call it; the map builders already did. Verified from
a forced 0o444 map: chmod logged, save_map True, exit 0.
- Docs/build.md: pipeline table now lists the seven site FBXs plus frontage, north,
hero and map steps and the shared FBX preset; packaging archive corrected to
Builds/GigLineQA; packaged-log location and -qaselftest usage documented; new
'Traps that cost real time in 0.1.x' table (read-only save, hero --out is the FBX,
MPFB add-on path, shot actor quitting under QA, null-RHI trace trap).
- Docs/setup.md: fresh-checkout build marked verified 2026-11-08 and the blocker
closed; new optional-keys section for OPENROUTER_API_KEY and MAPBOX_ACCESS_TOKEN
(gitignored .env, not needed by build/tests/release).
- Docs/Architecture 07 + architecture.md: build-output path corrected, marked
outside the repository.
- 5 new tests for ue_common (54 total).
zwitschi