feat: add --yes support to teardown scripts

phase3_teardown.sh

@@ -12,6 +12,39 @@ set -euo pipefail
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 source "${SCRIPT_DIR}/lib/common.sh"
 
+# Parse arguments
+AUTO_YES=false
+for arg in "$@"; do
+  case "$arg" in
+    --yes|-y) AUTO_YES=true ;;
+    --help|-h)
+      cat <<EOF
+Usage: $(basename "$0") [options]
+
+Options:
+  --yes, -y    Skip all confirmation prompts
+  --help, -h   Show this help
+EOF
+      exit 0
+      ;;
+    *)
+      log_error "Unknown argument: $arg"
+      exit 1
+      ;;
+  esac
+done
+
+confirm_action() {
+  local prompt="$1"
+  if [[ "$AUTO_YES" == "true" ]]; then
+    log_info "Auto-confirmed (--yes): ${prompt}"
+    return 0
+  fi
+  printf '%s' "$prompt"
+  read -r confirm
+  [[ "$confirm" =~ ^[Yy]$ ]]
+}
+
 load_env
 
 log_warn "=== Phase 3 Teardown: Runners ==="
@@ -32,9 +65,7 @@ FAILED=0
 # Step 1: Remove each runner via manage_runner.sh
 # manage_runner.sh handles its own safety (skips already-removed runners).
 # ---------------------------------------------------------------------------
-printf 'This will stop and remove all runners. Continue? [y/N] '
-read -r confirm
-if [[ "$confirm" =~ ^[Yy]$ ]]; then
+if confirm_action 'This will stop and remove all runners. Continue? [y/N] '; then
   while IFS= read -r name; do
     [[ -z "$name" ]] && continue
     log_info "Removing runner: ${name}"