fix(pyenv): preserve shims in login shells

macOS path_helper runs after .zshenv and can move system Python ahead of pyenv. Add an idempotent login hook and preserve it across later easyzsh migrations.

deploy.sh

@@ -68,6 +68,11 @@ is_easyzsh_zprofile_stub() {
   grep -Eq 'easyzsh|PATH lives in|Leave this file empty|prefer.*local\.zsh' "$f"
 }
 
+has_pyenv_login_hook() {
+  local hook='[[ -f "${XDG_CONFIG_HOME:-$HOME/.config}/zsh/pyenv.zsh" ]] && . "${XDG_CONFIG_HOME:-$HOME/.config}/zsh/pyenv.zsh"'
+  [[ -f "$1" ]] && grep -Fqx "$hook" "$1"
+}
+
 echo "Deploying easyzsh shell stubs into $TARGET_HOME"
 
 mkdir -p \
@@ -101,7 +106,10 @@ fi
 
 # Optional: fold a real (non-stub) ~/.zprofile into local.zsh.
 if [[ "$MIGRATE_ZPROFILE" -eq 1 && -f "$ZPROFILE" ]]; then
-  if is_easyzsh_zprofile_stub "$ZPROFILE"; then
+  if has_pyenv_login_hook "$ZPROFILE"; then
+    # ponytail: keep the whole profile; split migration only if per-line ownership is needed.
+    echo "Keeping ~/.zprofile: contains the pyenv login hook"
+  elif is_easyzsh_zprofile_stub "$ZPROFILE"; then
     echo "Removing easyzsh ~/.zprofile stub (hooks live in local.zsh / .zshenv)"
     rm -f "$ZPROFILE"
   elif [[ ! -f "$LOCAL_ZSH" ]]; then