Sell all

[shorres]

Sell All Portfolio Feature

• Added a prominent SELL ALL button to the portfolio section, styled to be highly visible and always bright red. [1] [2]
• Implemented three modals for the "Sell All" process: a nuclear warning confirmation, a second "are you sure" confirmation, and a success summary modal displaying gross, fee, net proceeds, and new wallet balance.
• Extended the UIManager class to manage new modal elements, handle all modal interactions, and wire up the "Sell All" button and confirmation workflow. [1] [2] [3]

Game Logic Enhancements

• Added sellAllCards and sellAllPortfolioCards methods to the GameEngine class, which process the sale of all cards (respecting lock settings), update wallet and stats, and return detailed results for the UI.

Other Updates

• Bumped the app version to 1.6.0 to reflect the new feature.
• Minor formatting adjustment to the collection display container for better readability.