* fix(tooling): avoid shared tsx cache startup stalls
Use the shared preloader before tsx initializes so maintained build, check, and test commands retain memory transforms without scanning other checkouts' disk caches. Preserve changed-cwd forks and copied tooling closures.
* test: align command contracts with tooling bootstrap
Resolve pnpm's configured modules directory from the checkout root before TypeScript boot, preserving both environment spellings and canonical checkout/common-worktree fallbacks. Use Node package self-resolution from the hydrated tsx package so nested wrappers cannot change relative path semantics.