v5.20.0

What's Changed

• PAI-833: add audited v5.19.0 recovery receipt by @markus-barta in #161
• feat: link issues to Pharos requests (PAI-812) by @markus-barta in #158
• fix(agent-bus): keep empty webhook polls read-only (PAI-835) by @markus-barta in #162
• fix(agent-bus): stabilize Codex steer fallback (PAI-840) by @markus-barta in #164
• release: v5.20.0 by @markus-barta in #163

Full Changelog: v5.19.0...v5.20.0