fix(ext/node): fix multiple http2 bugs (#33315)
## Summary
Fixes three `node:http2` bugs:
- **`kSessionFrameErrorListenerCount` not defined** (#33153): The
constant was used in `streamListenerAdded`/`streamListenerRemoved` but
never declared, causing `undici@8.0.0` HTTP/2 requests to crash with
`ReferenceError`.
- **`setupConnectionsTracking` not defined** (#33067):
`Http2SecureServer` referenced `setupConnectionsTracking` and
`httpServerPreClose`/`HttpServer` without importing them from
`node:_http_server`, causing `createSecureServer` with `allowHTTP1:
true` to crash.
- **`createSecureServer` gives empty response** (#33072):
`streamBaseState[kLastWriteWasAsync]` is a shared global array. When
`scheduleSendPending()` writes h2 frames to the underlying TLS socket,
the TLS socket's write sets `kLastWriteWasAsync = 1`. This caused the h2
stream's own `afterWriteDispatched` to treat the write as async, so the
write callback never fired, `_final` was never called, and the
`END_STREAM` frame was never sent. Fix: reset `kLastWriteWasAsync = 0`
after `scheduleSendPending()` since h2 stream writes are always
synchronous.
Closes #33153
Closes #33067
Closes #33072
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
