NITRO_BUN_IDLE_TIMEOUT=0 is ignored

Environment

• nitropack@2.13.1

Reproduction

The bug is very obvious. If you absolutely insist I can make a reproduction, but the problem is immediately clear by looking at the code, it uses || which doesn't account for 0.

Describe the bug

NITRO_BUN_IDLE_TIMEOUT=0 is treated as it's undefined (due to a flaw in implementation) and is effectively ignored. As such, the default timeout of 10 seconds is used.

This is incorrect; 0 is a valid value that disables the timeout entirely. Bun documentation specifically advises to use 0 for streaming & SSE:

Streaming & Server-Sent Events — The idle timer applies while a response is being streamed. If your stream goes quiet for longer than idleTimeout, the connection will be closed mid-response. For long-lived streams, disable the timeout for that request with server.timeout(req, 0).

Additional context

The fix is trivial, I will submit the PR.

Logs

Search the Nitro source for NITRO_BUN_IDLE_TIMEOUT and inspect the configuration fallback that uses ||. Verify how the Bun server idle timeout is passed through when the environment value is 0. Done means an explicit 0 disables the default 10-second timeout, with the relevant behavior covered by the project's existing checks if available.