Reverse zones: other views' addresses aren't missing PTRs

A reverse zone's missing PTR count covers only its own view's A and
AAAA records. Addresses only other views' records use are counted apart
(ptr_other_views, 'Other views' in zone show, a note on the zone page)
and filled only when asked: fill-ptr --other-views, zone create
--fill --other-views, or the New reverse zone dialog's checkbox. This
keeps one view's host names out of another view's reverse zones.

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

internal/server/present.go

@@ -41,8 +41,11 @@ func (s *Server) presentZone(st *model.State, z *model.Zone, counts map[int64]re
 	if pf, ok := dnsname.PrefixFromReverse(z.Name); ok {
 		out.Prefix = pf.String()
 		if z.Type == model.ZonePrimary {
-			fills := engine.PTRFills(st, z.ViewID, z.Name, st.ZoneRecords(z.ID))
+			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))
 			}