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.

core/dr-catalog/src/faces.rs

@@ -121,7 +121,7 @@ pub struct DetectedFace {
     /// no length left to read, so the only way to measure one is to embed it
     /// again (schema V14).
     pub quality: Option<f32>,
-    /// TRACES: FR-CULL-13
+    /// TRACES: FR-CULL-8a
     /// What the eyes are doing — P(open) per eye and P(sunglasses), read by
     /// `dr_face::classify` from the same aligned crop. `None` where the eye
     /// models were not present at indexing, or the face came from a peer

core/dr-catalog/src/schema.rs

@@ -752,7 +752,7 @@ CREATE TABLE IF NOT EXISTS xmp_conflicts (
 "#;
 
 const V17: &str = r#"
--- TRACES: FR-CULL-13 | NFR-P9
+-- TRACES: FR-CULL-8a | FR-CULL-13 | NFR-P9
 -- The eyes-open filter's index, and a lesson about where a column lands.
 --
 -- The people filter is a correlated EXISTS over `faces` per image, and it
@@ -774,7 +774,7 @@ CREATE INDEX IF NOT EXISTS faces_eyes ON faces(
 );
 "#;
 
-// V16 -- TRACES: FR-CULL-13
+// V16 -- TRACES: FR-CULL-8a
 //
 // What each face's eyes are doing: for each eye P(open), the source pixels
 // across its box and the sharpness of the patch the classifier saw; and