0.2.0

What's Changed

• Five readings: plan export, graph renderers, blame, digest, handoff by @aoprisan in #26
• The picture: graph --json, the TUI graph screen, and hird web by @aoprisan in #27
• Document capabilities system and tenure tracking for task handoffs by @aoprisan in #28

Full Changelog: v0.1.0...0.2.0