docs: reconcile the ROADMAP status block with the engine state

ROADMAP.md

@@ -4,16 +4,17 @@ Living roadmap for this project. This file is the single source of truth for cur
 
 ## Status at a glance — 2026-11-07 08:50
 
-Workstation and geo pipeline are done and verified. The art pipeline has a first blockout, terrain, and street in metres, in one shared coordinate frame. The Unreal step has not started: the 5.8.4 archive is verified and extracting, so every engine-facing item below is still open.
+Workstation and geo pipeline are done and verified. The art pipeline has a first blockout, terrain, and street in metres, in one shared coordinate frame. Unreal 5.8.4 is installed and starts headlessly; no project exists yet.
 
 | Area | State |
 | --- | --- |
 | Workstation | Bazzite `45.20261105`, driver `615.78.08`, Vulkan good, `git-lfs`/`clang`/`cmake`/`ninja` installed |
-| Tooling | Blender 5.2 + MPFB 2.0.18 + Blosm 2.7.28 working headless; QGIS 4.2.3 (stale `lts` removed 2026-11-07); PROJ 9.9.0; Unreal 5.8.4 extracted, headless smoke test passed, GUI launch pending |
+| Tooling | Blender 5.2 + MPFB 2.0.18 + Blosm 2.7.28 working headless; QGIS 4.2.3; PROJ 9.9.0; Unreal 5.8.4 installed |
 | Geo | extract, address + footprints + bounds, CRS + origin, 3DEP DEM, street profile, cross-sections — all verified and committed |
+| Engine | 5.8.4 extracted, headless `-NullRHI` init passes, Vulkan RHI unproven |
 | Blender | blockout (87 meshes), terrain, street (road/kerbs/sidewalks), site assembly — all in one frame, walk-checked |
 | Reference | 72 images local, uncommitted; hero entrance located; inherited eight-step claim overturned |
-| Unreal | engine extracted and headless-verified; editor GUI not launched yet |
+| Unreal project | not created — C++ project, packaging, and imports all open |
 
 **Open decisions:** code licence (MIT proposed); whether shipped builds carry a derived OSM database (ODbL posture).