Idle filter: suppress when watched process (claude) is running in distro

Probes wsl.exe -d <distro> -- pgrep -x claude before flagging a WSL pane
idle, with a 3s per-distro cache on the Rust side. If claude is running
anywhere in the distro, all panes in that distro stay out of the idle set
(per-pane granularity is out of scope — PIDs aren't observable from
Windows). PowerShell + SSH panes skip the probe and keep the legacy
always-notify behaviour.

src-tauri/src/pty.rs

@@ -457,6 +457,13 @@ fn looks_like_password_prompt(buf: &[u8]) -> bool {
 
 /// Run a process without flashing a console window on Windows.
 fn quiet_command(program: &str) -> std::process::Command {
+    quiet_command_pub(program)
+}
+
+/// Public variant for cross-module callers (currently {@link crate::probe}).
+/// Same behaviour as the in-module `quiet_command`; the wrapper exists so
+/// other modules don't each re-implement the CREATE_NO_WINDOW dance.
+pub fn quiet_command_pub(program: &str) -> std::process::Command {
     let mut c = std::process::Command::new(program);
     #[cfg(windows)]
     {