[Phase 10] Add android kotlin E2E test target

[kieran-osgood-shopify]

Stack Context

This is Phase 10 of the BrowserStack Maestro E2E stack for Checkout Kit, stacked on GitHub E2E reporting.

Parent issue: https://github.com/shop/issues-checkout-kit/issues/1149
Epic: https://github.com/shop/issues-checkout-kit/issues/1084

What changes are you making?

Adds the android sample app to the e2e test matrix
Adds an invisible e2e ready marker to assert against in line with what we do for react-native

How to test

Nothing to test - should just see the bitrise report a android build now too

---

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 the SwiftPM/CocoaPods version snippets in platforms/swift/README.md (major version only)

Releasing a new Embedded Checkout Protocol version?

• I have bumped embeddedCheckoutProtocolAndroid in platforms/android/gradle/libs.versions.toml
• I have updated protocol/languages/kotlin/embedded-checkout-protocol/api/embedded-checkout-protocol.api if the public API changed

Releasing a new Android version?

• I have bumped checkoutKitAndroid in platforms/android/gradle/libs.versions.toml
• 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.

[kieran-osgood-shopify]

• [CI] Maintenance: align ruby versions #468
• [Phase 10] Add Swift E2E target #466
• [Phase 10] Add android kotlin E2E test target #465 👈 (View in Graphite)
• [Phase 8] Add E2E path filtering for Bitrise #417 : 3 other dependent PRs (#462 , #463 , #464 )
• [Phase 7] Soft-launch E2E PR checks #364 : 1 other dependent PR (#401 )
• [Phase 6] Report E2E results to GitHub #363
• [Phase 5] Run BrowserStack Maestro from E2E matrix rows #362
• [Phase 4] Build React Native iOS E2E IPA artifact #361
• [Phase 3] Build React Native Android E2E APK artifact #360
• [Phase 2] Add Bitrise E2E pipeline skeleton #357
• [Phase1] Add E2E matrix launch smoke foundation #356
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[github-actions]

React Native — Coverage Report

Lines	Statements	Branches	Functions
	91.85% (327/356)	87.98% (183/208)	100% (86/86)

[github-actions]

Package Size

Platform	Artifact	Base	Head	Delta
Android	release AAR	226.7 KiB	226.7 KiB	0 B

Android file breakdown

File	Base	Head	Delta
classes.jar	239.9 KiB	239.9 KiB	0 B
res/layout/checkout_sheet_content.xml	4.0 KiB	4.0 KiB	0 B
res/values/values.xml	1.2 KiB	1.2 KiB	0 B
R.txt	1.0 KiB	1.0 KiB	0 B
proguard.txt	798 B	798 B	0 B
AndroidManifest.xml	578 B	578 B	0 B
res/drawable/close.xml	431 B	431 B	0 B
res/menu/checkout_menu.xml	354 B	354 B	0 B
META-INF/com/android/build/gradle/aar-metadata.properties	157 B	157 B	0 B

Measured from the PR base SHA and PR head SHA. The file breakdown shows uncompressed sizes within each package artifact, so individual files do not sum to the compressed artifact total. This comment reports package artifact sizes only; it is not a final app binary-size report.