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.

ui/dr-ui/src/library.rs

@@ -318,7 +318,7 @@ pub struct RatingFilter {
     pub people: Vec<u64>,
     /// Whether [`RatingFilter::people`] is a union or an intersection.
     pub people_mode: PeopleMode,
-    /// TRACES: FR-CULL-13
+    /// TRACES: FR-CULL-8a | FR-CULL-13
     /// Only photographs in which the chosen people are not caught blinking.
     ///
     /// A term *on* [`RatingFilter::people`]: Anna with her eyes open, whoever
@@ -8310,7 +8310,7 @@ mod tests {
             .unwrap();
     }
 
-    /// TRACES: FR-CULL-13
+    /// TRACES: FR-CULL-8a | FR-CULL-13
     /// With a person chosen, the chip asks about *that* person's eyes: Anna
     /// blinking hides the frame, and Bob blinking beside her does not.
     #[test]
@@ -8353,7 +8353,7 @@ mod tests {
         assert_eq!(count(vec![anna.0, bob.0], PeopleMode::Any, true), 4);
     }
 
-    /// TRACES: FR-CULL-13
+    /// TRACES: FR-CULL-8a | FR-CULL-13
     /// With nobody chosen the chip asks about every face, and a face behind
     /// sunglasses is not a blink.
     #[test]
@@ -8391,7 +8391,7 @@ mod tests {
         );
     }
 
-    /// TRACES: FR-CULL-13
+    /// TRACES: FR-CULL-8a | FR-CULL-13
     /// An eye that cannot be read is not a blink, in SQL as in
     /// `dr_face::EyeReading::state` — the two must agree, or the badge on
     /// the People screen would say one thing and the grid another.