This PR adds comprehensive async function support to BridgeJS, enabling seamless interoperability between Swift async functions and JavaScript Promises.
Swift functions marked withasync are now automatically exposed as JavaScript functions returningPromise<T>

Implementation Details

Core Changes

• ExportSwift.swift: Modified to detect async functions and wrap calls withJSPromise.async, handling proper return value conversion
• BridgeJSLink.swift: Updated TypeScript signature generation to emitPromise<T> for async functions
• TypeScript processor: Enhanced to recognize Promise types and generate appropriate bridge types

API Changes

• Import initialization: Changed fromimports: {...} togetImports() { return {...} } pattern to allow accessingexports inside imports implementation.

Example Usage

Swift side:

@JSfunc fetchUserData(_ userId:String)async->String{    // Async Swift implementationreturn userData}

Generated JavaScript/TypeScript:

exporttypeExports={fetchUserData(userId:string):Promise<string>;}

This enhancement significantly improves the developer experience when working with async Swift code in JavaScript environments, providing type-safe Promise-based APIs that feel natural in both languages.