Static signal listeners resolve names on the target platform, including `SIGWINCH` on POSIX.
`on`, `once`, `off`, and `removeListener` accept computed signal names and deliver the signal name and number.
Computed names for other event families and chained registrations are unsupported.
Windows registration is limited to CRT signals; WASI has no OS signals.

Literal `uncaughtException` and `uncaughtExceptionMonitor` registrations compile.
Handled exceptions resume queued native work; monitors alone do not suppress failure.
Error objects and primitive exceptions can reach listeners, while arbitrary native objects remain subject to exception-value restrictions.
Exception capture callbacks are unsupported.