Add RN hardcoded buyer identity maestro E2E

[kyle-schellen]

What changes are you making?

Adds a React Native Maestro smoke test for hardcoded buyer identity checkout. The RN sample E2E cart bootstrap link now accepts buyerIdentityMode, so both guest and hardcoded buyer identity scenarios create their cart through the same cold-start bootstrap path.

The hardcoded scenario seeds a cart with hardcoded buyer identity, opens checkout directly to payment, and completes checkout successfully.

This also scopes the RN Maestro runner to the React Native suite so future platform E2Es do not get picked up accidentally.

A follow-up PR will add focused runner flags such as --guest and --hardcoded-buyer-identity for running individual scenarios.

How to test

• dev rn e2e ios
• dev rn e2e android

---

Before you merge

Important

• I've added tests to support my implementation
• I have read and agree with the Contribution Guidelines
• I have read and agree with the Code of Conduct
• I've updated the relevant platform README (platforms/swift/README.md and/or platforms/android/README.md)

---

Releasing a new Swift version?

• I have bumped the version in ShopifyCheckoutKit.podspec
• I have bumped the version in platforms/swift/Sources/ShopifyCheckoutKit/ShopifyCheckoutKit.swift
• I have updated platforms/swift/CHANGELOG.md
• I have updated the SwiftPM/CocoaPods version snippets in platforms/swift/README.md (major version only)

Releasing a new Android version?

• I have bumped the versionName in platforms/android/lib/build.gradle
• I have updated platforms/android/CHANGELOG.md
• I have updated the Gradle/Maven version snippets in platforms/android/README.md

Tip

See the Contributing documentation for the full release process per platform.

[kyle-schellen]

• Add focused rn e2e scenario flags #388
• Add RN hardcoded buyer identity maestro E2E #337 👈 (View in Graphite)
• Normalize RN E2E selector contract #336
• Wire RN E2E dev commands #335
• Add RN Maestro guest checkout subflows #334
• Add native checkout close selector for RN E2E  #333
• Add RN sample E2E bootstrap support #332
• main

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[kyle-schellen]

Required to dismiss optional React Native debug warning when it appears in dev builds.

[kieran-osgood-shopify]

What is the warning you're suppressing? LogBox exposes a way to suppress warnings if they're not an issue, otherwise we might want to just fix the warning

https://github.com/orgs/community/discussions/75497

import { LogBox } from "react-native";

// You can choose the warnings you want to ignore for example
LogBox.ignoreLogs([
  '<string you want to match against in console>'
]);

[github-actions]

React Native — Coverage Report

Lines	Statements	Branches	Functions
	91.83% (326/355)	87.98% (183/208)	100% (86/86)

[github-actions]

Package Size

Platform	Artifact	Base	Head	Delta
React Native	npm tarball	91.6 KiB	91.6 KiB	0 B

Measured from the PR base SHA and PR head SHA. This comment reports package artifact sizes only; it is not a final app binary-size report.