fix: avoid relative completion backend execution

scripts/completion/ccs.zsh

@@ -22,19 +22,6 @@ __ccs_completion_run() {
   local current="$1"
   shift || true
 
-  local script_path script_dir repo_root repo_cli
-  script_path="${(%):-%N}"
-  script_dir="${script_path:A:h}"
-  repo_root="${script_dir:h:h}"
-  repo_cli="${repo_root}/dist/ccs.js"
-  if [[ ! -f "${repo_cli}" ]]; then
-    repo_cli="${repo_root}/bin/ccs.js"
-  fi
-  if [[ -f "${repo_cli}" ]]; then
-    node "${repo_cli}" __complete --shell zsh --current "${current}" -- "$@" 2>/dev/null
-    return 0
-  fi
-
   if (( $+commands[ccs] )); then
     ccs __complete --shell zsh --current "${current}" -- "$@" 2>/dev/null
   fi