v0.2.0

What's Changed

• Add editable local install mode with skill add <local-source> --mode edit.
• Keep edit installs as canonical live symlinks to local source skills, with agent projections linked through the canonical entry.
• Add skill doctor diagnostics for resolved state, missing installs, broken links, copy drift, source-missing edit installs, fallback copies, and installed-only skills.
• Surface install materialization/status details in list output and JSON.
• Document install modes and local development guidance for editable skills.

Validation

• swift test
• swift build -c release
• .build/release/skill --version -> 0.2.0
• CLI help and unknown-command smoke checks