feat(ios): update for 4.15.1

[dcrawbuck]

Summary

Updates iOS SDK docs from 4.15.0 → 4.15.1.

Changes

• Updated <SdkLatestVersion> in content/docs/ios/index.mdx and content/docs/ios/sdk-reference/index.mdx
• Added 4.15.1 changelog entry to content/docs/ios/changelog.mdx

Upstream changelog (4.15.1)

Enhancements

• Adds an onCustomCallback parameter to getPaywall.
• SuperwallOptions.localResources now accepts UIImage's from xcasset files, e.g. UIImage(named: "my-image").
• Exposes abandoned transaction product params in audience filters.

Fixes

• Sanitizes email user attribute.

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Automated by Lever SDK docs version check

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Note

Low Risk
Documentation-only updates that change displayed version numbers and API/reference text; no runtime behavior is affected.

Overview
Updates iOS docs to SDK v4.15.1, including bumping the displayed latest version on the iOS landing and SDK reference pages.

Documents new 4.15.1 API surface: getPaywall now supports an optional async onCustomCallback handler (with updated signatures and examples), and SuperwallOptions.localResources is retyped to [String: AssetResource] to allow asset-catalog UIImages in addition to file URLs (with updated localResources reference and guide snippet).

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	superwall-docs-staging	a3ee7fd	Commit Preview URL Branch Preview URL	Apr 29 2026, 06:22 PM