Use Connect/Express Middleware in Koa

koa-connect is a utility package that enables the integration of standard Connect or Express middleware into a Koa application. It acts as a bridge, adapting the `(req, res, next)` signature of Connect/Express middleware to Koa's `(ctx, next)` context-based middleware pattern. The current stable version is 2.1.1. While not actively undergoing rapid feature development, the package is in a maintenance state, receiving updates for compatibility and bug fixes as needed. It serves a niche purpose, primarily when a Koa-native version of a required middleware is unavailable or for library authors aiming for framework-agnostic HTTP middleware. Developers are strongly cautioned to prefer Koa-specific middleware when available due to fundamental design differences between Koa's async/await flow and Express's callback-based approach, which can lead to unexpected behavior and control flow issues.