create_note tool:
- New 'description' parameter accepted and forwarded to the service.
- When status is set (creating a task), 'body' is dropped before the
service call. Task bodies are owned by the consolidation pipeline.
update_note tool:
- New 'description' parameter; routed through update_fields.
- When the resolved target has is_task=True and 'body' is in the
arguments, the call errors with a message nudging toward log_work or
description. Knowledge notes are unaffected.
HTTP routes (POST/PATCH/PUT /api/notes) accept body freely — the
restriction is only at the LLM tool layer.
