Correct a stale count repeated in four places: 10 floating pins, not 23

Recounted at catalog 18a6d2d8: 66 unique pins — 48 full X.Y.Z, 6 two-part
lines, 4 major lines (10 float), 8 exact versions wearing a variant suffix.
The '23' carried since v0.233.0 matches no definition the catalog supports.
Definition written down beside the number so it can be rechecked.

Also: CONTEXT said the fleet floor was 0.257.0; the hub says 0.259.0.

Comment and doc only — no behaviour change.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

controller/internal/web/updatebadge.go

@@ -42,9 +42,11 @@ const (
 //     once the catalog moves past it, so installed would equal template and this function would
 //     answer „Naprakész" on precisely the apps that are behind — with every test still green,
 //     because the two fields have the same type and shape.
-//   - KNOWN LIMITATION: 23 of the catalog's 66 distinct pins FLOAT (postgres:16-alpine,
-//     mariadb:11.6, …). For those the reference can be identical while the image behind it has moved
-//     upstream. Those apps read „Naprakész" when they may not be — R-446.
+//   - KNOWN LIMITATION: **10 of the catalog's 66 distinct pins FLOAT** (recounted 2026-09-21;
+//     the "23" this comment carried since v0.233.0 matched no definition the catalog supports
+//     today). For those the reference can be identical while the image behind it has moved
+//     upstream, and 6 of the 7 measurable ones HAVE moved since the catalog set them. Those apps
+//     read „Naprakész" when they may not be — R-446.
 func compareInstalledToTemplate(s stacks.Stack) updateState {
 	switch stacks.CatalogOrder(s) {
 	case stacks.UpdateOrderCurrent: