chore: switch to v2 specs for shorter SDK class names

[louis-sanna-dev]

Summary

• Switch Speakeasy workflow to use :v2 registry tags for all sources (main, azure, gcp)
• Regenerate SDK with shorter class names
• Bump version to 2.0.0a3

This enables shorter SDK class names via x-mistral-sdk-operation-id in the OpenAPI spec.

Before: JobsAPIRoutesFineTuningArchiveFineTunedModelRequest
After: ArchiveModelRequest

Related

• Dashboard PR: https://github.com/mistralai/dashboard/pull/17207

Local Testing

# Build
uv build

# Test in isolated environment
uv run --isolated --with ./dist/mistralai-2.0.0a3-py3-none-any.whl python -c "
from mistralai.client import Mistral
from mistralai.client.models import UserMessage
print('OK')"

# Test completion API
uv run --isolated --with ./dist/mistralai-2.0.0a3-py3-none-any.whl python -c "import os; from mistralai.client import Mistral; client = Mistral(api_key=os.environ['MISTRAL_API_KEY']); res = client.chat.complete(model='mistral-small-latest', messages=[{'role': 'user', 'content': 'Say OK'}]); print(res.choices[0].message.content)"

Test in test.pypi

Published and verified: https://test.pypi.org/project/mistralai/#history

uv run --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple/ --with mistralai==2.0.0a3 python -c "import os; from mistralai.client import Mistral; client = Mistral(api_key=os.environ['MISTRAL_API_KEY']); res = client.chat.complete(model='mistral-small-latest', messages=[{'role': 'user', 'content': 'Say OK'}]); print(res.choices[0].message.content)"

Test plan

• Verify main SDK has short class names
• Verify Azure/GCP packages are unaffected (still use standard names like ChatCompletionRequest)
• Local build and import test
• API call test
• test.pypi deployment and verification