[SBA-03] extract WASM functions from LNC into WasmManager class

[jamaljsr]

Summary

This PR moves almost all WASM-related lifecycle, connection, and RPC logic out of the main LNC class into a dedicated WasmManager, while keeping the public LNC API the same. The goal is to keep LNC small and focused as it grows with upcoming session-based auth and passkey features, so new behavior can be added without turning LNC into an unmaintainable “god class.” These changes build on the groundwork from #130 and #131 as part of the Session-Based Authentication & Passkeys work.

Technical Notes

• Keep LNC focused and maintainable: As we add more auth/session logic, the main LNC class would otherwise accumulate a lot of low-level WASM, connection, and RPC details; pushing those concerns into WasmManager keeps LNC closer to a thin façade over the APIs.
• Support future auth features with clearer seams: With a dedicated manager that already handles connection state and credential providers, upcoming session-based auth and passkey features have a clear extension point instead of threading new logic through an already-large core class.

Steps to Test

1. Run the unit tests (including the new WasmManager tests and updated LNC tests):

   yarn test

2. Build the library to ensure the production bundle still compiles correctly:

   yarn build

Related Issues & Pull Requests

• Session-Based Authentication & Passkeys #128

Depends on:

• [SBA-01] chore: normalize indentation to 2 spaces #130
• [SBA-02] update typescript and add typecheck script #131
• [SBA-02b] migrate from deprecated tslint to typescript-eslint #133

[Copilot]

Pull request overview

This PR extracts WASM-related lifecycle, connection, and RPC logic from the LNC class into a new WasmManager class. The refactoring maintains the existing public API while improving maintainability and preparing for future session-based authentication features.

Key Changes:

• Created WasmManager class to encapsulate all WASM operations, connection management, and RPC communication
• Updated LNC class to delegate WASM operations to WasmManager while preserving its public interface
• Moved lncGlobal reference from lnc.ts to wasmManager.ts for better encapsulation

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
lib/wasmManager.ts	New class implementing WASM lifecycle, connection logic, and RPC communication
lib/wasmManager.test.ts	Comprehensive test suite for the new WasmManager class
lib/lnc.ts	Refactored to delegate WASM operations to WasmManager while maintaining public API
lib/lnc.test.ts	Updated tests to reflect delegation pattern and removed implementation detail assertions
test/utils/test-helpers.ts	Updated import path for lncGlobal reference
lib/index.ts	Exported WasmManager for external use
lib/index.test.ts	Added test coverage for WebAssembly polyfill functionality

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