fix: replace static whatsapp-rust-bridge imports with lazy dynamic loading

The whatsapp-rust-bridge package contains a top-level await on an inline
WASM binary, which propagates through the ESM graph and causes
ERR_REQUIRE_ASYNC_MODULE when CJS consumers try to require() this package.

Replace all static imports from whatsapp-rust-bridge with a lazy-loading
bridge module (wasm-bridge.ts) that uses import().then() instead of
top-level await, keeping the dependency out of the static ESM graph.

https://claude.ai/code/session_01XaA7GwNaB6azTHFYQ8WEpB

src/Utils/crypto.ts

@@ -118,7 +118,7 @@ export function sha256(buffer: Buffer) {
 	return createHash('sha256').update(buffer).digest()
 }
 
-export { hkdf, md5 } from 'whatsapp-rust-bridge'
+export { hkdf, md5 } from './wasm-bridge'
 
 export async function derivePairingCodeKey(pairingCode: string, salt: Buffer): Promise<Buffer> {
 	// Convert inputs to formats Web Crypto API can work with