v1.5.9

What's Changed

• docs: add pr to thought types in README by @jtsiros in #21
• fix(version): strip build metadata when comparing versions by @jtsiros in #22
• Migrate conductor.json to .conductor/settings.toml by @jtsiros in #23
• fix(describe_pr): prevent frontmatter leaking into PR descriptions by @jtsiros in #24
• fix(describe_pr): tighten PR-info gathering, gate verification, guard thoughts/ from commits by @jtsiros in #25
• Add Contributor License Agreement and contribution workflow by @jtsiros in #26
• fix(skills): stop PR/plan status frontmatter getting stuck in draft by @jtsiros in #27
• fix(ci): point CLA signature storage at an unprotected branch by @jtsiros in #29
• feat(agents): download agent/skill bundles as a single tarball by @jtsiros in #28
• Bump Cargo.toml to 1.5.9 for the v1.5.9 release by @jtsiros in #30

Full Changelog: v1.5.8...v1.5.9