Align iOS paywall preview mocks with web/dashboard catalog

[JayShortway]

Motivation

One of four coordinated PRs (iOS, Android, web SDK, dashboard) to reconcile the products/prices/offers shown on the cross-platform paywall rendering-validation screenshots. The screenshots diverge because each platform mocks the missing product data (the shared offerings.json/packages.json contain no prices or offers) from its own hard-coded table. iOS was the biggest outlier: every product was mocked at a flat $1.99 with no intro offers.

Additionally, the loader keyed products only by base identifier, while OfferingsFactory looks them up by compound product:plan identifier (e.g. com.revenuecat.annual_product:p1y, since packages.json carries billing plan identifiers). That mismatch can silently drop subscription packages.

Description

Reworks PaywallPreviewResourcesLoader (test-only) to build the preview products with TestStoreProduct:

• Canonical prices/periods matching the web + dashboard preview tables (which are identical and treated as the source of truth): weekly $2.99, monthly $9.99, 2-month $17.99, 3-month $24.99, 6-month $39.99, annual $69.99, lifetime $119.99.
• A single $1.99 / 1-week introductory offer on each subscription, so products are intro-offer eligible and offer text/UI render (matching the web/dashboard "intro offer present" state and the Android trial/intro phases).
• "Pro Access" as the localized product title, matching the web/dashboard product.store_product_name and the Android preview parser.
• The products map is keyed by both base and compound (product:plan) identifiers so packages resolve regardless of billing plan ids.

Only the test-only loader under Tests/RevenueCatUITests/ is changed; no SDK source is touched.

Known residual: the relative_discount badge is a hard-coded "19%" string on web/dashboard but computed from prices on iOS/Android, so that percentage may still differ across platforms.

Testing

I could not build/run the screenshot tests in this environment (no Xcode/SwiftLint available). The screenshots are regenerated by the record_paywall_screenshots lane in CI; please verify the recorded iOS screenshots there.

Checklist

• If applicable, unit tests
• If applicable, create follow-up issues for purchases-android and hybrids

  

[RevenueCat-Danger-Bot]

	1 Error
🚫	Label the PR using one of the change type labels. If you are not sure which label to use, choose pr:other.

Label	Description
pr:feat	A new feature. Use along with pr:breaking to force a major release.
pr:fix	A bug fix. Use along with pr:force_minor to force a minor release.
pr:other	Other changes. Catch-all for anything that doesn't fit the above categories. Releases that only contain this label will not be released. Use along with pr:force_patch, or pr:force_minor to force a patch or minor release.
pr:RevenueCatUI	Use along any other tag to mark a PR that only contains RevenueCatUI changes
pr:next_release	Preparing a new release
pr:dependencies	Updating a dependency
pr:phc_dependencies	Updating purchases-hybrid-common dependency
pr:changelog_ignore	The PR will not be included in the changelog. This label doesn't determine the type of bump of the version and must be combined with pr:feat, pr:fix or pr:other.

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