fix(dns,routes): keep DoH socket-handler routes runtime-only and prune stale persisted entries

ts/dns/manager.dns.ts

@@ -97,8 +97,8 @@ export class DnsManager {
       if (hasLegacyConfig) {
         logger.log(
           'warn',
-          'DnsManager: DB has DomainDoc entries — ignoring legacy dnsScopes/dnsRecords/dnsNsDomains constructor config. ' +
-            'Manage DNS via the Domains UI instead.',
+          'DnsManager: DB has DomainDoc entries — ignoring legacy dnsScopes/dnsRecords constructor config. ' +
+            'dnsNsDomains is still required for nameserver and DoH bootstrap unless that moves into DB-backed config.',
         );
       }
       return;