D1078 — Review kinds for unpromoted lessons and unclassified index entries

Decision. kb_review gains two debt kinds, lesson_unpromoted (an archived journal entry that no live page of a non-journal map links and that does not carry the header > Archived ...: no durable lessons.) and index_unclassified (a curated map index with entries still under ## New pages, one item per index). A lesson counts as carried when a live non-journal page links the archived entry; the "no durable lessons" header is the only exemption.

Why. Whether lessons were carried and where a new page belongs in a curated index are judgements the server cannot make (D14), so they are review kinds, not lint, which has no severity and no exceptions (D947, D907). harvest_candidate already covers closed entries not yet archived; what stayed unseen was the entry archived without the harvest, so the two kinds are disjoint by status. Both close on page state, never on a dismissal (D907).

Alternatives rejected. Lint checks: no definite fix exists for either. Widening harvest_candidate to archived entries: it would stop being disjoint and its age rule is meaningless for an archived entry. Also listing ## Moved here: not requested, a different heading and intent.

Consequences. A KB with unharvested archives or unfiled index entries gets items it did not have, and doctor_suggested may turn true (additive, no on-disk change). The header wording is the doctor skill's step 5b: the kind and the skill change together. The heading is the shared constant kb.NewPagesHeading, so the writer (D714) and the kind cannot drift.