chore: run official sweep to add evals

[Oseltamivir]

For sweep to generate data for frontend

[functionstackx]

Thanks for this PR to enable evals. Gaint PRs are inherently hard to ship & cause an massive wave of jobs that spike CI queue times.

divide this PR up into multiple small PRs

for example:
PR # 1: "enablement eval for gptoss hopper class & mi3x0 class"
PR # 2: "enablement eval for deepseek hopper class & mi3x0 class"
PR # 3: "enablement eval for deepseek blackwell class & mi355x class"
etc

[claude]

Claude finished @Oseltamivir's task in 44s —— View job

---

Review of PR #558

• Gather context and understand PR changes
• Check master config validation rule
• Review perf-changelog.yaml changes
• Provide review summary

---

LGTM - no blocking issues found

This PR adds a single perf-changelog.yaml entry with evals-only: true to enable evals for 24 single-node configurations (NVIDIA B200/H100/H200 and AMD MI300X/MI325X/MI355X). The changes are clean:

• ✅ No master config files were modified, so no validation issues
• ✅ Uses the correct evals-only: true flag for eval-only sweeps
• ✅ PR link references PR Adding evals after throughput benchmarks #258

Note: Reviewer @functionstackx has requested splitting this into smaller PRs. That's a process/workflow decision outside my scope to enforce.

[cquil11]

lgtm