Add OVHcloud as an inference provider

[fabienric]

What

Adds OVHcloud as an inference provider.

Test Plan

Added new tests for OVHcloud both with and without streaming.

What Should Reviewers Focus On?

I used the Cerebras PR as an example.

[julien-c]

Hi @fabienric we are currently finishing a refactoring of Inference Providers integration code in #1315, this should be merged soon, but we will need to rewrite part of your implementation (should be even simpler to integrate), will ping again after it's been merged.

[hanouticelina]

Hi @fabienric,
We've merged a refactoring for Inference Provider integration into main, which should make adding new providers much easier.
Could you merge main into your branch and update your PR accordingly? it should be relatively straightforward with the new structure:
1 - You have to update the PROVIDERS mapping here: inference/src/lib/getProviderHelper.ts#L49 and add ovhcloud (let's ensure we respect the alphabetical order) :

import * as OvhCloud from "../providers/ovhcloud";
...
export const PROVIDERS: Record<InferenceProvider, Partial<Record<InferenceTask, TaskProviderHelper>>> = {
	...
	"ovhcloud": {
		"conversational": new OvhCloud.OvhCloudConversationalTask(),
	},
        ...

2 - Update packages/inference/src/providers/ovhcloud.ts to implement OvhCloudConversationalTask that inherits BaseConversationalTask:

import { BaseConversationalTask, BaseTextGenerationTask } from "./providerHelper";

export class OvhCloudConversationalTask extends BaseConversationalTask {
	constructor() {
		super("ovhcloud", "https://oai.endpoints.kepler.ai.cloud.ovh.net");
	}
}

and that's it :) let us know if you need any help! you can find more details in the documentation : https://huggingface.co/docs/inference-providers/register-as-a-provider#2-js-client-integration.

[julien-c]

(sorry for the moving parts @fabienric – we can help move this PR over the finish line if needed)