* fix(worktree): preserve PATH for lifecycle scripts
Lifecycle command strings were running through login shells, which could rewrite PATH before setup commands saw the daemon environment. Use the shared stable script-shell helper without login startup files, and route related project-authored command strings through it.
* fix(worktree): ignore Bash startup env hook
Project command strings should not source shell startup hooks before they see Paseo's supplied environment. Strip BASH_ENV from lifecycle, loop verify, and ACP string-command shells and pin the behavior in setup tests.
* fix(worktree): resolve Bash through PATH
* fix(worktree): preserve Windows cmd command strings
* test(acp): expect Windows cmd terminal strings
