Trace the eye reading to FR-CULL-8a and the chip to FR-CULL-13

The register grew both clauses the same day this was built: FR-CULL-8a is
the per-face state the reading is, and FR-CULL-13 is the rule that a
signal is shown and filtered and never writes a judgement. The tags,
faces.md §17 and catalog.md now say which is which; FR-CULL-8a records
what of it is built, and that its third model is under the InsightFace
grant by the same decision as the pair.

docs/catalog.md

@@ -748,7 +748,7 @@ CREATE TABLE faces (
     -- (faces.md §6, §9). NULL for a face stored as a unit vector before it
     -- was kept.
     quality    REAL,
-    -- What the eyes are doing (FR-CULL-13, faces.md §17): per eye P(open),
+    -- What the eyes are doing (FR-CULL-8a, faces.md §17): per eye P(open),
     -- the source pixels across its box and the sharpness of the patch the
     -- classifier saw; and P(sunglasses). All seven or none; NULL is "never
     -- read", which every filter treats as unknown rather than as closed.
@@ -913,5 +913,5 @@ and is not answered here.
 | FR-CULL-10 | §10.1 `people` and `face_person`, merge-by-redirect, §10.2 clustering as a library pass |
 | FR-CULL-11 | §5 `Selector::Person`, confirmed-only by default |
 | FR-CULL-12 | §10.1 derived data in the catalog; names to the sidecar, UUID as merge identity |
-| FR-CULL-13 | §10.1 the seven eye columns, derived like the embedding; the filter term is `RatingFilter::eyes_open` |
+| FR-CULL-8a | §10.1 the seven eye columns, derived like the embedding; the filter term is `RatingFilter::eyes_open` |
 | NFR-SEC-5 | §10.4 sync left undecided and off; nothing in §10 emits an embedding |