refactor(tools): support an explicit project directory

scripts/dev-secure.sh

@@ -1,7 +1,8 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+SOURCE_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+ROOT_DIR="$(cd "${GEV_PROJECT_ROOT:-$SOURCE_ROOT}" && pwd)"
 cd "$ROOT_DIR"
 
 PORT="${PORT:-4173}"