Fix Python and runtime dependency metadata

[Thump604]

What changed

• Set python_requires to Python 3.10 or newer.
• Declare direct runtime imports huggingface-hub, regex, and tqdm as direct dependencies.

Root cause

The package advertised Python 3.8 while transformers>=5.7.0 requires Python 3.10. Runtime modules also relied on dependencies being installed transitively.

Validation

• Verified metadata contains the corrected Python floor and direct dependencies.

Fixes #1692