v1.6.0

What's New

Added

• Sequential PRD numbering — PRDs named {NNN}-{name}.md (e.g., 001-user-auth.md), task reviews named {NNN}-tasks-{name}.md, prd_id: PRD-NNN in frontmatter, prime displays IDs
• Linear re-export with update-instead-of-duplicate — export map drives update vs create, orphan warnings, incremental saves for partial failure recovery

Removed

• Empty placeholder skill directories (orchestrator/, reviewer/)

Full Changelog: v1.5.0...v1.6.0