Reverse zones: list other views' addresses, clearer wording

The zone page and jarl zone show list the addresses only other views'
records use (ptr_other_views_list), with the name each would get and the
view it comes from, and say plainly that they aren't missing here. The
page's button reads 'Add PTR records for them in view X'. zone show
lists the missing PTRs too.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/server/present.go

@@ -43,12 +43,19 @@ func (s *Server) presentZone(st *model.State, z *model.Zone, counts map[int64]re
 		if z.Type == model.ZonePrimary {
 			fills := engine.PTRFills(st, z.ViewID, z.Name, st.ZoneRecords(z.ID), false)
 			out.PTRMissing = len(fills)
-			if z.ViewID != 0 {
-				out.PTROtherViews = len(engine.PTRFills(st, z.ViewID, z.Name, st.ZoneRecords(z.ID), true)) - len(fills)
-			}
 			for _, f := range fills[:min(len(fills), 25)] {
 				out.PTRMissingList = append(out.PTRMissingList, api.PTRFill(f))
 			}
+			if z.ViewID != 0 {
+				for _, f := range engine.PTRFills(st, z.ViewID, z.Name, st.ZoneRecords(z.ID), true) {
+					if f.From == "" {
+						continue
+					}
+					if out.PTROtherViews++; out.PTROtherViews <= 25 {
+						out.PTROtherViewsList = append(out.PTROtherViewsList, api.PTRFill(f))
+					}
+				}
+			}
 		}
 	}
 	for _, o := range st.LinkedWith(z) {