Integrate fiat on/off ramps for dUSD for collectives via Brale partners

[monsieurbulb]

No description provided.

[olanod]

The app will have a top-up/withdraw functionality where depending on the user's location they should be presented with different payment options based on available providers.

Providers can come from a "on/off-ramps DAO" where members are categorized and ranked based on their location, supported payment methods, compliance with local regulations or amounts of money they can deal with for example.