The update and backup services ran without STACKS_DIR since systemd
doesn't source ~/.env or ~/.zshrc. Capture the value at install time
and write it as Environment= in the generated unit files.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Makes stacks work like arty — discovers stacks in the current directory.
Explicit STACKS_DIR env var still takes precedence.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Drop .sh extension — scripts are now invocable directly as arty and stacks.
Remove redundant aliases from .zshrc since ~/bin is already in PATH.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
valknarandClaude Sonnet 4.6