A gateway with an OAuth MCP server whose refresh token expired opened a new
authorize tab every 300s, all night (92 tabs). Four defects stacked:
- The parked-server self-probe re-entered the SDK's authorization-code flow
with interactive OAuth enabled. The timed wake is unattended by definition:
`_wait_for_reconnect_or_shutdown` now distinguishes "self-probe" from an
explicit "reconnect", and `_park` flips the task-local
`_oauth_interactive_enabled` off before a self-probe revival.
- Gateway MCP discovery (startup, `/reload-mcp`, hot-added multiplex
profiles) ran interactive, unlike the CLI's background discovery. All three
now run under `suppress_interactive_oauth()`; an expired token parks with
the `hermes mcp login` hint instead of a browser.
- `_is_interactive()` trusted `sys.stdin.isatty()`, which the Windows CRT
reports True for a DEVNULL/detached stdin. `_stdin_is_console()` confirms
with `GetConsoleMode` on Windows.
- Removing an `mcp_servers` entry (or `enabled: false`) never reached a
running gateway; the parked server probed forever. New
`reconcile_mcp_servers_with_config()` tears down dropped/disabled servers
(via `shutdown_mcp_servers(names=...)`) and connects new ones; a
housekeeping chore runs it when config.yaml's (mtime, size) changes.
`_select_new_servers` also stops nudging disabled parked servers.
Fixes#81830. Fixes the browser-storm item of #96320.
4beb7e29a2