chore(model gallery): add steelskull_l3.3-damascus-r1

[mudler]

Description

This pull request includes a significant addition to the gallery/index.yaml file, introducing a new AI model entry. The most important changes include the addition of the Damascus-R1 model with detailed descriptions of its architecture, philosophy, and technical specifications.

New AI model entry:

• Added Damascus-R1 model entry with the name "steelskull_l3.3-damascus-r1", including an icon URL, multiple URLs for more information, and a comprehensive description of its architecture and core philosophy.
• Detailed the technical architecture of Damascus-R1, highlighting its use of the SCE merge method and integration of components from various high-performance models for enhanced capabilities.
• Described the core philosophy of Damascus-R1, emphasizing its balance between technical capability and natural conversation flow, and its foundation on the custom Hydroblated-R1 base model.
• Provided file information for the Damascus-R1 model, including the filename, SHA256 hash, and URI for accessing the model file.

Notes for Reviewers

Signed commits

• Yes, I signed my commits.

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