v0.6.0

• release: v0.6.0 — ls perf, status dots, trash improvements, fork gitignore
• backlog: clear completed items, keep stale filtering as future work
• feat: ls performance + column caps + status dots, trash self-trash + diverged size + elapsed time, gitignore in forks
• refactor: extract shared utils for parallel workstreams
• init: simplify post-fork prompt to yes/no terminal question
• init: reword post-fork prompt to reflect auto-cd behavior
• add backlog: known issues and future improvements
• shell integration: exp cd actually changes your directory (v0.5.0)
• exp new: add --help flag and auto-detect branch-like descriptions
• exp new prints plain 'cd /path' for easy copy-paste
• exp cd prints 'cd /path' for easy copy-paste
• fix exp cd missing newline causing zsh % indicator