MIRROR: javascript for 馃悳's, a tiny runtime with big ambitions ant.themackabu.dev

stabilize async coroutines and node stream compatibility master

- fix async generator await/yield, overlap, and reentrant next semantics - harden coroutine teardown, active async tracking, and queued microtask rooting - fix JIT lexical-this handling for closure-heavy callback paths - improve Node compatibility for fs/promises FileHandle, util.promisify, and EventEmitter listeners() - fix stream lifecycle regressions around flowing startup, Transform callbacks, and tty ReadStream state ownership