pkgx 2.11.0

pkgx 2.11.0 — a standalone binary that runs any Open Source tool on demand without installing it system-wide. Use when the user needs to run CLI tools (Node, Python, Deno, cargo, git, etc.) without installing them, run specific versions of tools, use `+pkg` syntax to inject dependencies into environments, write portable scripts with pkgx shebangs, manage downloaded packages with mash scripts, or set up CI/CD with pkgx. Covers version pinning (@, ^, ~, semver ranges), disambiguation, environment injection via eval, PKGX_DIR for virtual environments, and the broader pkgx ecosystem (dev, pkgm, mash, pkgo).