Add 12 scoring & environment improvements with full test coverage

Add MOD 08 schema tests, V2 training stack, and close MOD 08/JDG 07/API 01/OBS 02

Recover env judge training stack and sync project tracking

Recover env server client stack and deployment tracking

Add AGT 04/05/07 implementations, server integration, and doc updates

Import and normalize Max backend scaffold with validated partial status

Rename owner docs to kian max kush and update mappings