feat: Full OpenEnv spec compliance — /metadata, /schema, /health, /mcp endpoints + pyproject.toml fix + deterministic 0-1 graders + proper inference.py STDOUT

chore: Sanitize repository of deprecated template files and refactor EcoEnv namespace

fix: Final branding string replacements

feat: Full standardization to NetZero-Nav package

feat: Pivot to Atlas-GreenPath Eco-Resilient Logistics Environment

build: replace start with main function for strict entrypoint compliance

build: Add uv lock, openenv-core, and server wrapper for multi-mode deployment