Ln 110 Project Docs Coordinator

This is the orchestrator for the LN documentation pipeline. It runs once per project to gather context (package.json, docker-compose, source structure, migrations), detect what you're running (backend, frontend, database, Docker flags), then fans out to five specialized workers that each generate their slice of the docs. The key move here is gathering project context once and passing the same snapshot to all workers, so you don't lose details or re-scan files five times. It handles the parallel invocation, collects summaries from each worker, and builds the routing table that ln-100 uses for quality repair loops. You won't call this directly; ln-100 kicks it off as the first L2 coordinator when you're generating a full project doc set.