Add VERITAS Omega Agent Trust Lab

[VrtxOmega]

Summary

Add one maintained open-source reference lab to Benchmarks & Datasets using the repository's required one-line format.

Why it fits

The list accepts open-source resources directly related to autonomous-agent security and specifically includes resources for evaluating agent security. The Trust Lab presents six blinded clean/tampered pre-action assurance cases and keeps execution authorization fixed to false.

Validation

• git diff --check
• Before: searched the README and all open/closed PRs; no existing VERITAS or Agent Trust Lab entry was present.
• After: the diff contains exactly one Benchmarks & Datasets entry and no other file change.
• I manually verified the repository and live lab return HTTP 200 and reviewed every description claim against the public project README.
• Documentation-only change; no code or generated assets changed.

Risk

Low. One removable list entry; no source, dependency, or build changes.

Assisted-by: OpenAI Codex