feat(MiniMax Node): Add standalone MiniMax vendor node (backport to release-candidate/2.18.x) #28868

Performance Gate Passed

✅ 32 untouched benchmarks
⏩ 20 skipped benchmarks¹

_{Comparing backport-28748-to-release-candidate/2.18.x (271f6c8) with master (0295369)²}

20 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩
No successful run was found on release-candidate/2.18.x (ca0dc16) during the generation of this report, so master (0295369) was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩