docs: sync current evidence status

[hyeokjun32]

Summary

• Synced Lab documentation with the current Local Studio and Jetson Evidence Track implementation.
• Updated stale Jetson/Studio evidence values and clarified historical real-image benchmark context.
• Reflected current AIGuard diagnosis demo coverage in portfolio docs.

Validation

• poetry run python3 -m pytest -q

Notes

• Documentation only; no API or runtime behavior changed.