Jetpack Setup: Update response for Jetpack connection data request

[itsmeichigo]

Part of WOOMOB-965

Description

In order to integrate Jetpack connection API endpoint to the Jetpack setup flow, we need to determine whether the site has registered a connection with Jetpack first (ref: pe5sF9-401-p2). The GET jetpack/v4/connection/data endpoint has been updated with a new field isRegistered from Jetpack plugin version 14.4, so this PR updates the response to include this new optional field. Other existing fields connectionOwner and blogID have also been parsed as they will be useful later.

To use the new field, I've also updated the response type for the request.

Testing steps

• Create a Jurassic Ninja site with WooCommerce and no Jetpack.
• Log in to the new store on the app using site credentials.
• After login succeeds, start the Jetpack setup flow from the entry point on the dashboard.
• Confirm that the setup flow still succeeds.

Testing information

Tested with simulator iPhone 16 iOS 18.4.

Screenshots

Simulator.Screen.Recording.-.iPhone.16.-.2025-08-04.at.11.58.37.mp4

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• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce iOS Prototype by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce iOS Prototype
	Build Number	pr15971-3d6c766
	Version	22.9
	Bundle ID	com.automattic.alpha.woocommerce
	Commit	3d6c766
	Installation URL	2p33l85bpcrvg

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[RafaelKayumov]

LGTM. Works as described. I was able to connect Jetpack on a fresh Jurassic Ninja site.

[RafaelKayumov]

super nit: Looks like this comment is from deleted JetpackUserMapper.swift

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 23.0. This milestone is due in less than 2 days. Please make sure to get it merged by then or assign it to a milestone with a later deadline.

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