chore: move CodeRabbit high-level summary to walkthrough #1299

Job	Run time
Lint podspec using Xcode 16.1	2m 10s
Test Swift package using Xcode 16.1	2m 34s
Lint code with SwiftLint	16s
Test on tvOS using Xcode 16.1	2m 26s
Test on iOS using Xcode 16.1	4m 24s
Test on macOS using Xcode 16.1	3m 5s
	14m 55s

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