bsync

Implements the milestone plan already established in this conversation, following CLAUDE.md's dev workflow and definition of done. Use right after planning a milestone in this same session.

Scaffolds a milestone plan against CLAUDE.md and DESIGN.md, prompting for milestone-specific details before producing the plan.

Read-only conformance audit of a completed milestone against CLAUDE.md acceptance criteria/invariants and the DESIGN.md contracts. Use after finishing a milestone, before starting the next.