v3.0.0

What's Changed

PTES workflow, visualization and output pass.

Features

• run: add stage advance approval policy — manual/custom stage gates host-enforced from pre-engagement proof (a895301)
• trace: show delegation deliverables below agents (4fe568b)
• output: render mermaid diagrams in markdown previews (0f245d2)

Bug Fixes

• settings: reconcile dangling stage agent assignments (3bb0c85)

Major version marks the completed four-part workflow/visual/output milestone.

Full Changelog: v2.7.0...v3.0.0