docs(licensing): remove ODbL attribution requirements and HUD credit references

Drop the OpenStreetMap/ODbL attribution requirement, the Google imagery rule,
and the related F-4 requirement, risk R-4, release check, and TODO items across
AGENTS, PLAN, ROADMAP, README, setup, architecture sections, and manifests.
OSM data is now documented as local private use only. Also normalize
numbered-list indentation in the architecture docs.

Docs/Architecture/08_concepts.md

@@ -46,8 +46,6 @@ Rule: place a building only against a neighbour or street mesh, never in isolati
 
 - Reference photography (local, gitignored) drives manual façade work.
 
-- In-game ODbL attribution drawn by `AGigLineHUD` every frame, bottom-left.
-
 ## QA harness
 
 - `-qaselftest`: core ticker (not world timer) so pause cannot freeze the test that proves pause works.