feat: add cloud deploy fallback runtime

scripts/server_stop.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+data_dir="${BOSS_DATA_DIR:-.boss-data}"
+pid_file="${BOSS_PID_FILE:-$data_dir/server.pid}"
+
+if [[ ! -f "$pid_file" ]]; then
+  echo "No Boss PID file found."
+  exit 0
+fi
+
+pid="$(cat "$pid_file")"
+if [[ -n "$pid" ]] && kill -0 "$pid" 2>/dev/null; then
+  kill "$pid"
+  for _ in {1..20}; do
+    if ! kill -0 "$pid" 2>/dev/null; then
+      break
+    fi
+    sleep 1
+  done
+fi
+
+rm -f "$pid_file"
+echo "Boss server stopped."