Ship Mermaid details, publish prep, and AGENTS budget config

Make ui command publish-safe

Add adoption guidance for init and doctor

Add a read-only doctor command

Add adoption-aware init inspection

Differentiate downstream dependents in the timeline

Add interactive dependency tracing to the timeline

Add spec question answer flows and refine the specs UI

Upgrade the timeline into a compact grouped planner

Add spec and task detail views

Add spec filters to the task kanban

Refresh current state after closing SPEC-005

Add archival analysis filters to the UI

Initial spec-embryo foundation