Explanation

Reorganizes RampsController initialization to separate critical startup data from region-specific data fetching. This change improves app startup performance by deferring non-essential data fetching until the wallet home page loads.

Additionally, there are interface updates as the API now returns countries with supported: { buy: true, sell: true }.

Changes

• init() method: Now only fetches geolocation and countries (24h TTL) on engine instantiation
• hydrateState() method: New method that fetches providers and tokens for the user's region, called on wallet home page load
• Countries state: Added countries: Country[] to controller state with 24 hour TTL caching
• getCountries(): Removed action parameter - API now returns buy/sell support info in a single response
• setUserRegion(): Refactored to use countries from state instead of fetching them
• SupportedActions type: New type { buy: boolean; sell: boolean } for region support info
• Country.supported / State.supported: Changed from boolean to SupportedActions object

Benefits

• Faster app startup - only essential data (geolocation) fetched during initialization
• Better separation of concerns - region-specific data fetched when needed
• Improved caching - countries stored in state with 24h TTL, reducing redundant API calls
• Cleaner architecture - prepares for mobile integration where hydrateState() will be called on wallet page load
• Fixes bug where setUserRegion() could fail if sell countries were fetched after init

References

https://consensyssoftware.atlassian.net/browse/TRAM-3230

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them