Find and fix where docs/api.md fell behind the code. Triggers on "check for doc drift", "is the API doc up to date", "/check-docs-drift", "перевір дрейф документації", "docs drift". Runs the deterministic scripts/check-docs-drift.py (parses the public NoteBook methods with ast, compares to what docs/api.md documents — NO LLM finds the gap), reports the drift, and PROPOSES the doc edit that closes it. The gap is found by parsing; the agent writes the missing documentation in the doc's existing style. Edits only docs/; never commits or pushes.
