Add MiniMax-M3 and MiniMax-M2.7 to benchmark model registry

[octo-patch]

Reason: The scheduled OpenRouter benchmark registry lists only the obsolete MiniMax M2.1 and M2.5 models and is missing the current MiniMax-M3 and MiniMax-M2.7 targets.

Adds openrouter/minimax/minimax-m3 and openrouter/minimax/minimax-m2.7 to the default model list in .github/benchmark-models.yml. Both slugs were confirmed against the live OpenRouter model catalog: minimax/minimax-m3 (1,048,576-token context, text/image/video input) and minimax/minimax/m2.7 (204,800-token context, text input). The existing M2.1 and M2.5 entries are retained so historical leaderboard runs stay reproducible.

Checks:

• Parsed .github/benchmark-models.yml with PyYAML; the file loads cleanly with 35 model entries, including the four MiniMax entries.
• Reviewed the diff for hardcoded secrets (none found).

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (1 file)

• .github/benchmark-models.yml

---

_{Reviewed by claude-sonnet-5 · Input: 18.3K · Output: 1.9K · Cached: 113.7K}