Clarify ECP Android release and dependency version pins

[kiftio]

Clarifies the Android version-catalog comments so it is clear that embeddedCheckoutProtocolAndroidRelease is the standalone ECP publish target, while embeddedCheckoutProtocolAndroid is the published artifact consumed transitively by Checkout Kit.

The comments now document the required Maven Central publication/adoption sequence and why the pins can intentionally differ.

[github-actions]

Bundle Size Budgets

Budget	Size	Limits	Result
Android AAR package (ZIP)	424.24 KiB (0 B)	450 KiB soft / 500 KiB hard	✅ Within budget

Bundle and package size

Web bundle sizes cover shipped runtime JavaScript. Package sizes cover the full published archive, including any source maps, declarations, and documentation it contains.

Platform	Measurement	Compression	Base	Head	Delta
Android	Library package (.aar)	ZIP	424.2 KiB	424.2 KiB	0 B

Android package files (uncompressed)

These are uncompressed file sizes; they do not sum to the compressed package size above.

File	Base	Head	Delta
classes.jar	459.2 KiB	459.2 KiB	0 B
res/layout/checkout_view_content.xml	2.6 KiB	2.6 KiB	0 B
res/layout/checkout_sheet_content.xml	2.0 KiB	2.0 KiB	0 B
res/values/values.xml	1.4 KiB	1.4 KiB	0 B
R.txt	1.2 KiB	1.2 KiB	0 B
AndroidManifest.xml	922 B	922 B	0 B
proguard.txt	826 B	826 B	0 B
res/drawable/checkout_close.xml	431 B	431 B	0 B
res/menu/checkout_menu.xml	351 B	351 B	0 B
META-INF/com/android/build/gradle/aar-metadata.properties	179 B	179 B	0 B
META-INF/MANIFEST.MF	25 B	25 B	0 B

How sizes are measured

Measured from the PR base SHA and PR head SHA. Web bundle rows sum shipped .js, .mjs, and .cjs files under dist/, excluding source maps and declarations. The gzip bundle size sums files compressed individually with gzip -n -9. npm package sizes are gzip-compressed .tgz archives; Android AAR sizes are ZIP archives. Package sizes are not final app binary sizes.

[bitrise]

Bitrise builds

E2E · iOS CI

Install this build

Open Tophat, select your target device, then click Install. Links open on the Mac running Tophat.

SDK	Install
Kotlin	Install with Tophat

Checkout Kit E2E results

Status	Tags	Target	Platform	OS version tag	Device
✅	launch, checkout-presentation, checkout-completion, buyer-identity, preload	kotlin	android	latest	Google Pixel 9 Android 17.0