chore,docs(provider/azure):azure responses image-generation streaming is enabled

[tsuzaki430]

Background

#9064
The image_generation tool's streaming mode is now available on Microsoft Azure platform ,
https://learn.microsoft.com/en-us/azure/ai-foundry/openai/how-to/dall-e?view=foundry-classic&tabs=gpt-image-1#streaming

Summary

After image_generation became enabled with streaming on the Azure side, streamText worked as expected without requiring any changes to doStream in the AI SDK.
Therefore, I concluded that we can close this issue by adding examples and tests for Next.js, and updating the documentation accordingly.

• fix documents.
• rework azure CICD test for image_generation.
• fix example in examples/ai-core.
• add example in examples/next-openai.

Manual Verification

• add cicd test for package @ai-sdk/azure build.
• streamText with image generation
  examples/ai-core/src/stream-text/azure-image-generation-tool.ts
• next.js useChat client test.
  examples/next-openai/app/test-azure-image-generation/page.tsx
http://localhost:3000/test-azure-image-generation

Checklist

• Tests have been added / updated (for bug fixes / features)
• Documentation has been added / updated (for bug fixes / features)
• A patch changeset for relevant packages has been added (for bug fixes / features - run pnpm changeset in the project root)
• I have reviewed this pull request (self-review)

Future Work

Related Issues

#9064

[tsuzaki430]

I have reviewed this pull request (self-review)

[gr2m]

@tsuzaki430 can you please look into the conflicts?

[tsuzaki430]

@gr2m

Thank you for review and about a changeset.
I just solved the conflicts and fix Page component name😊

[tsuzaki430]

Hello,

I solved some conflicts in this PR and ReOpen.