Default autostart update-check interval to 1 minute

The no-change path is a single `git fetch`, so polling master every minute
costs nothing and lines up with the VPS's own 60s deploy timer instead of
lagging it by up to five.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

scripts/install-autostart.sh

@@ -11,11 +11,13 @@
 # session, which is not incidental: the clicker synthesises real X11 input and
 # needs a desktop with DISPLAY set. A systemd system service has neither.
 #
-#   ./scripts/install-autostart.sh [--interval-minutes 5] [--skip-clicker]
+#   ./scripts/install-autostart.sh [--interval-minutes 1] [--skip-clicker]
 set -euo pipefail
 
 ROOT="$(cd "$(dirname "$0")/.." && pwd)"
-INTERVAL=5
+# Default 1: the no-change path is a single `git fetch`, so a per-minute check
+# costs nothing and matches the VPS's own 60s deploy timer.
+INTERVAL=1
 SKIP_CLICKER=0
 
 while [ $# -gt 0 ]; do