feat(ray): add protobuf for model and ray

[pinglin]

Because

• We need to support Ray integration for our model service
• Ray uses specific protobuf definitions that need to be incorporated
• Some Ray protobuf files don't follow our standard naming conventions

This commit

• Adds protobuf definitions for Ray model service
• Configures buf.yaml to ignore Ray-specific protobuf files
• Enables comment-based lint ignores to handle Ray's non-standard naming conventions

[github-actions]

The latest Buf updates on your PR. Results from workflow Buf CI / buf (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Apr 10, 2025, 1:31 PM