Statistics per view: toggle views on the Statistics page

Answers, result codes, record types, zones, blocking, rate limiting and the top lists are also counted per view, from named's response log. The Statistics page has a toggle per view with All and None, remembered per browser; jarl stats --view and ?views= on the API. named's own counters stay for the whole server, and the page says so.

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

CHANGELOG.md

@@ -40,6 +40,13 @@ All notable changes to Jarl are documented here. The format follows
 
 ### Added
 
+- Statistics per view ([docs/stats.md](docs/stats.md#views)): the
+  Statistics page has a toggle per view, with All and None, remembered in
+  the browser, to see some views only or several together (linked views,
+  say). Answers, result codes, record types, zones, blocking, rate
+  limiting and the top lists follow it; named's own counters stay for the
+  whole server, and the page says so. `jarl stats --view`, API
+  `?views=`. Per-view figures start with this version.
 - DNS over TLS and HTTPS ([docs/encrypted-dns.md](docs/encrypted-dns.md)):
   `jarl encrypted-dns setup --hostname NAME --address ADDR` (and the
   Encrypted DNS page) obtains a certificate for the host name if needed,