Merge pull request #31 from alexzhangs/develop

Release 0.6.2 — completion fixes + test coverage

Release 0.6.1 — bash completion fix for stock macOS bash 3.2

See CHANGELOG.md:
https://github.com/alexzhangs/xsh/blob/0.6.1/CHANGELOG.md#061---2026-06-08

Fixes:
- Bash tab-completion works on stock macOS bash 3.2 without bash-completion
  package (self-contained _init_completion fallback shim)
- .xshrc auto-sources the completion file (no profile edits needed)

Changed:
- Test correction for __xsh_get_util_by_path selector convention (#26)

Release 0.6.0 — production-readiness sweep

See CHANGELOG.md for the full release notes:
https://github.com/alexzhangs/xsh/blob/0.6.0/CHANGELOG.md#060---2026-06-08

Highlights:
- Bash + zsh tab completion (completions/xsh.bash, completions/_xsh)
- Multi-bash-version CI matrix (3.2 macOS, 4.4 rockylinux, 5.x macOS+Linux)
- Coverage rose from ~62% to ~80%; specs reorganized; release workflow added
- OSS community health files (CODE_OF_CONDUCT, SECURITY, CHANGELOG, CONTRIBUTING)
- README polish, variable taxonomy diagram, 10 docstring backfills