Workflow encoding feature (offloading / encryption)

[mistralai-nfau]

Usage

from mistralai import Mistral
from mistralai.extra.workflows import (
    configure_workflow_encoding,
    WorkflowEncodingConfig,
    PayloadEncryptionConfig,
    PayloadEncryptionMode,
)

client = Mistral()

# Encryption only
config = WorkflowEncodingConfig(
    payload_encryption=PayloadEncryptionConfig(
        mode=PayloadEncryptionMode.FULL,
        main_key="your-256-bit-hex-key",
    )
)

await configure_workflow_encoding(config, client=client)

#  With offloading (S3)

from mistralai.extra.workflows import (
    PayloadOffloadingConfig,
    BlobStorageConfig,
    StorageProvider,
)

config = WorkflowEncodingConfig(
    payload_offloading=PayloadOffloadingConfig(
        storage_config=BlobStorageConfig(
            storage_provider=StorageProvider.S3,
            bucket_name="my-bucket",
        ),
    )
)

await configure_workflow_encoding(config, client=client)

[louis-sanna-dev]

@mistralai-nfau why do we need to put it in a region sdk-class-body instead of extras?

[mistralai-nfau]

It's for DX to allow client.configure_workflow_encoding(...)

[louis-sanna-dev]

@mistralai-nfau ok but it's adding long term maintenance cost on the SDK team.

[mistralai-nfau]

@louis-sanna-dev I removed the custom code for now, I added a code example in the PR summary.
Will be easier to add later if needed than removing it.

[louis-sanna-dev]

(thanks a lot @anth2o for your in-depth review)