Bug: --timeout does not work when --sender is specified

[tjx666]

Description

When --sender is specified together with --timeout, the timeout is ignored and the alerter process hangs indefinitely until the user manually interacts with the notification.

Steps to Reproduce

1. Run with --timeout only (works correctly):

alerter --title "Test" --message "hello" --timeout 5 &
PID=$!; sleep 7; ps -p $PID && echo "STILL ALIVE" || echo "EXITED"
# Output: EXITED (correct)

2. Run with --timeout + --sender (broken):

alerter --title "Test" --message "hello" --timeout 5 --sender com.googlecode.iterm2 &
PID=$!; sleep 7; ps -p $PID && echo "STILL ALIVE" || echo "EXITED"
# Output: STILL ALIVE (timeout ignored)

Expected Behavior

The notification should auto-dismiss after 5 seconds regardless of --sender.

Actual Behavior

The alerter process never exits. The notification stays on screen until manually dismissed or the process is killed.

Environment

• macOS 15 (Sequoia)
• alerter v26.5 (installed via brew install vjeantet/tap/alerter)
• Apple Silicon (arm64)

Workaround

Currently not using --sender to keep --timeout working.

[ntroutman]

Similarly using "--app-icon" also breaks timeouts.