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.

AGENTS.md

@@ -147,8 +147,6 @@ Always use a consistent scale test, named export presets, and repeatable import
 - Record asset provenance and redistribution permissions in `THIRD_PARTY_NOTICES.md`.
 - Verify licenses for every MPFB asset, texture, animation, vehicle, and audio file.
 - An asset whose license cannot be verified must not be committed. Record it as unresolved in `THIRD_PARTY_NOTICES.md` and replace it with a redistributable asset before the release.
-- 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.