Add encrypted card pool management, persisted card and outbound rotation, and per-card decline cooldowns. Improve customer and redemption-code lookup, recovery controls, and filtering; rebuild frontend assets and refresh mock screenshots.
Give read-only eligibility checks four independent slots so payment processing no longer blocks them. Cover concurrency, slot cleanup, card rotation, and lookup behavior with tests.
Move the hardcoded merchant account, product IDs, amounts and
currency into an encrypted catalog vault record read per checkout
flow. The setup wizard offers the X Premium defaults (X's public
gifting identifiers) or a fully custom catalog, put --name catalog
updates it, and status validates it. Tests use fake catalog
fixtures instead of real identifiers.
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