Release v3.1.4

Release: v3.1.4 [skip ci]

Patch

• Docs: DGX-B200 benchmarks (284f9f7)
• Improve: Default to bfloat16 for Torch (0419b54)
• Make: Upgrade deps for Py 3.10+ (cef4bea)
• Make: Upgrade CI with uv (0dff0dc)