Add Support for Scaled UI Amount Extension to JS Library

[gitteri]

Add Support for Scaled UI Amount Extension to JS Library

This PR adds support for the Scaled UI Amount extension to the js ibrary, enabling conversion between raw token amounts and UI representation based on a configurable multiplier.

Changes

Client Library

• Added amountToUiAmountForScaledUiAmountMintWithoutSimulation function to convert raw amounts to UI amounts using a configurable multiplier
• Added uiAmountToAmountForScaledUiAmountMintWithoutSimulation function for reverse conversion
• Updated main utility functions to detect and handle mints with the Scaled UI Amount extension
• Improved code organization with clear section headers and extracted common helper functions
• Enhanced documentation throughout the codebase

Tests

• Added comprehensive test suite for the Scaled UI Amount extension functionality
• Tests cover basic integer multipliers (2x, 3x) and decimal multipliers (0.5x, 1.5x, 0.001x)
• Added tests for time-based multiplier transitions (current vs. future multipliers)
• Verified compatibility with large token amounts
• Ensured consistent behavior with decimal places and edge cases

[joncinque]

Looks great overall! Just some nits on the tests

[joncinque]

Looks good to me, just need to pass CI -- looks like the code needs to be formatted

[joncinque]

Thanks!