The single entry point for syncing the personal vault and the team shared-vault in both directions — checks for drift, pulls the wiki's new gotchas and decisions inbound, and proposes vault knowledge the team should have outbound. Use when the user says "sync the dev wiki", "sync both ways", "what's new in the wiki and what should I contribute", "is my vault in step with the team wiki", or wants a periodic two-way catch-up. Orchestrates shared-vault-ingest (inbound) and shared-vault-promote (outbound); for one direction only, call that skill directly.
