Jon/fix/final phaze

[Jon-edge]

Consolidate navigation logic for the EdgeSpend feature into a helper action to ensure a region selection is guaranteed. Allow light account users to browse cards but block only at the purchase step.

Additional notes:

Light accounts can safely browse gift cards without creating a Phaze identity. Identity creation is deferred until a full account attempts to purchase.

Identity Creation Flow

1. ensureUser() guards identity creation - Returns false for light accounts (account.username == null), skipping identity creation entirely.

2. uniqueId is randomly generated - Not derived from account keys. Generated via makeUuid() only when creating a new identity.

3. Storage uses synced dataStore - Identities persist across devices for the same Edge account.

Light → Full Account Transition

Step	Action	Identity Created?
1	Light account browses market	No - ensureUser returns false
2	Light account taps "Next" to purchase	Blocked by checkAndShowLightBackupModal
3	User backs up account	Account gains username
4	Full account browses again	Yes - new identity created
5	Full account purchases	Works, identity syncs

Why This Is Safe

• No orphaned identities: Light accounts cannot create identities
• No lost purchases: Blocked before order creation

CHANGELOG

Does this branch warrant an entry to the CHANGELOG?

• Yes
• No

Dependencies

none

Requirements

If you have made any visual changes to the GUI. Make sure you have:

• Tested on iOS device
• Tested on Android device
• Tested on small-screen device (iPod Touch)
• Tested on large-screen device (tablet)

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Note

Introduces centralized navigation and gating for the EdgeSpend (Phaze) gift card flow.

• Adds navigateToGiftCards action to require country selection and route to giftCardList or giftCardMarket based on stored Phaze identity; updates HomeScene and SideMenu to use it
• GiftCardMarketScene: adds fallback country selection via modal + synced settings, auto goBack() if none selected
• GiftCardPurchaseScene: blocks light accounts at purchase via checkAndShowLightBackupModal
• CHANGELOG: notes new EdgeSpend (Phaze) gift card feature

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