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.

PLAN.md

@@ -78,7 +78,7 @@ Use a consistent scale test, named export presets, and repeatable import setting
 - Walkable sidewalks and a designated street crossing.
 - First-person movement, mouse look, collision, reset, and pause.
 - Recognizable hero façades; simplified background buildings.
-- Fixed daytime lighting, basic ambience, and geographic attribution.
+- Fixed daytime lighting and basic ambience.
 - Packaged Linux build with documented controls.
 
 ### Excluded
@@ -120,7 +120,5 @@ Finish each milestone's release checks before expanding scope. Cut map size and
 - Separate code, art, engine, and geographic-data licensing.
 - Record asset provenance and redistribution permissions in `THIRD_PARTY_NOTICES.md`.
 - Verify licenses for every MPFB asset, texture, animation, vehicle, and audio file.
-- Include “© OpenStreetMap contributors” and the appropriate license link; review ODbL obligations for distributed derived databases.
-- Do not use extracted Google imagery or geometry without explicit applicable rights.
 - Keep restricted assets out of the public repository; prefer redistributable replacements.
 - Review Epic distribution requirements before publishing builds.