Decisions and summaries — GET/POST /api/notes/decisions and POST **************** a person records a decision or summary PERSONAL on its own note-<id> key with a note_decisions row and a DERIVED_FROM link per source, every source resolved and structurally clearing its creator (one 400 SOURCE_NOT_AVAILABLE for missing and uncleared, 503 LABELS_UNAVAILABLE with nothing written when an owner cannot be asked); the list is keyset-paged through the one predicate and the provenance gat...