#35055 feat(cloudflare): add Workers AI image support
## Summary
Add Cloudflare Workers AI image support to LiteLLM's `cloudflare` provider.
## Scope
- image generation through Cloudflare's native Workers AI run endpoint - current Cloudflare image models and response formats - request and response transformation into LiteLLM's standard image API - provider capability metadata, tests, and documentation
This is split from #21115 so that issue and the current PR can stay focused on embeddings and reranking.
## References
- https://developers.cloudflare.com/workers-ai/models/?tasks=Text-to-Image - https://developers.cloudflare.com/api/resources/ai/methods/run/
If anyone is interested in taking this on, help would be appreciated.