v0.2.1 — hardening

lara-shell v0.2.1 — hardening

Fixes from an adversarial hardening pass (each with a regression test; 142 tests total):

• Safety: macro steps now honor the production guard — a guarded command (e.g. migrate:fresh --force) inside a macro is refused instead of running unconfirmed.
• The shell no longer shadows PsySH's own built-ins (clear, doc, dump, …) via fuzzy matching.
• help renders the shell guide and help <command> shows per-command usage (both were broken by the command word leaking into the argument).
• Quoted arguments with spaces (make:model "Foo Bar") stay a single token.
• Macros accept trailing input without erroring on unknown options.
• ForkingDriver purges all db/redis connections before fork (not just the default) and flushes output buffers before exit.

All validated live in a real Laravel app. Requires PHP 8.2+, Laravel 10/11/12.