BriefSpec 0.2.0 — first-class Claude Code experience

Fixed

• Checkpoint suggestions are delivered once per pending checkpoint and repeat only after the configured cooldown, instead of on every completed tool call.

Changed

• Claude Code project installs write skills to .claude/skills/ so the host lists outcome-brief and session-checkpoint natively.
• Claude Code project hook commands anchor on $CLAUDE_PROJECT_DIR so they no longer depend on the session's working directory.
• doctor resolves scope automatically: a project install for the current directory wins, the user install is the fallback, and --scope forces either. The report header now names the scope it checked.

Full changelog: v0.1.0...v0.2.0