feat(RevenueCatUI): add presentation-session state store (PWENG-57)

[AlvaroBrey]

• Adds PaywallStateStore, the presentation-session store seeded from the declared state defaults.
• Workflows share one store across all their screens so state survives navigation.
• Standalone paywalls keep one store across full refreshes like color changes.
• Nothing reads or writes it yet, so no behavior change.

[AlvaroBrey]

Warning

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• feat(RevenueCatUI): Tab selected-state (PWENG-65) #3664
• feat(RevenueCatUI): evaluate state conditions in the override resolver (PWENG-57) #3661
• feat(RevenueCatUI): add presentation-session state store (PWENG-57) #3660 👈 (View in Graphite)
• feat(paywalls): add state-driven paywalls data layer (PWENG-57) #3656
• main

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[AlvaroBrey]

@cursor review

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[cursor]

Standalone paywall store recreated

Medium Severity

For non-workflow component paywalls, updatePaywallState rebuilds state through calculateState without reusing the existing PaywallStateStore. toComponentsPaywallState then allocates a new store seeded only from declarations, so presentation-session values are lost on color changes and other full state refreshes even though locale-only updates keep the same Components instance.

Additional Locations (1)

• ui/revenuecatui/src/main/kotlin/com/revenuecat/purchases/ui/revenuecatui/helpers/OfferingToStateMapper.kt#L378-L381

 

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[AlvaroBrey]

Fixed in a932631. The standalone path now reuses one PaywallStateStore (a ViewModel-owned standaloneStateStore, lazily created in updatePaywallState) across full state refreshes like color changes, instead of minting a fresh store each time via toComponentsPaywallState. It is tied to the ViewModel lifetime, so state still resets when the paywall is presented again, matching the workflow-shared store and iOS (@StateObject). Note this was latent in this PR since nothing reads or writes the store until the component wiring lands (Phase 1), but fixing the lifecycle now keeps it correct.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.31%. Comparing base (a970520) to head (a932631).

Additional details and impacted files

@@                       Coverage Diff                       @@
##           alvarobrey/pweng-57-data-layer    #3660   +/-   ##
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  Coverage                           80.31%   80.31%           
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  Files                                 384      384           
  Lines                               15729    15729           
  Branches                             2200     2200           
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  Hits                                12633    12633           
  Misses                               2218     2218           
  Partials                              878      878           

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