chore(model gallery): add fast-math-qwen3-14b

[mudler]

Description

This pull request adds a new model entry to the gallery/index.yaml file, introducing the "Fast-Math-Qwen3-14B" model with detailed metadata and performance improvements.

Additions to the model gallery:

• A new model, "Fast-Math-Qwen3-14B," has been added to the gallery. This model is an efficiency-optimized version of Qwen3-14B, offering approximately 65% faster inference on average with minimal performance loss.
• Metadata includes:
  • URLs for accessing the model on Hugging Face.
  • A detailed description of the model's development, performance enhancements, and technical specifics.
  • File information with a SHA-256 checksum and URI for downloading the model.

Notes for Reviewers

Signed commits

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