docs: bring every document in line with the current build

README rewritten around the actual state (walkable DemoMap, blockout facades,
planned patches); Tools/README now lists all seventeen tools by role; build.md
gains the content pipeline table and the two enforced rules (one unit conversion,
collision decided at import). Setup gains a content-pipeline row, the toolchain
state notes the demo level exercises the engine path, release checks record the
Blender pre-check that backs traversal, PLAN points at ROADMAP/MEMORY/Screenshots,
and THIRD_PARTY_NOTICES gains rows for the hero facade and the candidate props.

Also fixed the last stale reference to Geo/scripts in MEMORY.md - a sweep found
old paths in six documents after the tool move, which the memory entry now warns
about.

Docs/setup.md

@@ -18,9 +18,10 @@ Anything marked **human step** needs credentials, licence acceptance, or a decis
 | 2. Engine | done — UE `5.8.4` at `/run/media/system/DATA/Engines/UE_5.8.4`, editor launches with Vulkan on the 5070 Ti |
 | 3. Tooling pins | done except the optional geo venv; Blender 5.2, MPFB 2.0.18, Blosm 2.7.28, QGIS 4.2.3 all verified |
 | 4. Project bootstrap | done — C++ project, packaged blank build, static-mesh scale test, MPFB character import |
+| 6. Content pipeline | in progress — blockout, terrain, street, hero façade and the walkable `DemoMap` exist; façades and materials are planned patches (`0.1.4`) |
 | 5. Repository | procedure documented; a fresh checkout has not yet been exercised end to end |
 
-Next: `0.1.0` content work (façade, block frontage, gameplay). Current board is [ROADMAP.md](../ROADMAP.md).
+Next: `0.1.0` gameplay (attribution display, lighting, crossing) and the El Capitan Theatre, then the planned patches. Current board is [ROADMAP.md](../ROADMAP.md).
 
 ## 1. System