[client] iOS: structured ResolvedIPs collection for domain routes (#6090)

* [client] iOS: structured ResolvedIPs collection for domain routes

Replace comma-joined ResolvedIPs string with a gomobile-friendly
ResolvedIPs collection (Add/Get/Size), mirroring the Android bridge
in client/android/network_domains.go.

This allows the iOS app to match domain-route resolved IPs against
connected peer routes without parsing CSV strings, fixing the route
status indicator for dynamic (DNS) routes.

* [client] iOS: align dynamic route exposure with Android bridge

For dynamic (DNS) routes the Swift side previously received
"invalid Prefix" as the Network value, forcing UI code to special-case
that sentinel. The Android bridge uses Domains.SafeString() instead so
peer.routes entries (which also derive from Domains.SafeString()) match
directly. Mirror that here.

Also fix the resolved IP lookup: resolvedDomains is keyed by the
resolved domain (e.g. api.ipify.org), not the configured pattern
(e.g. *.ipify.org). Group entries by ParentDomain like the daemon does
in client/server/network.go, so wildcard route patterns get their
resolved IPs populated.

client/ios/NetBirdSDK/routes.go

@@ -34,7 +34,34 @@ type DomainDetails struct {
 
 type DomainInfo struct {
 	Domain      string
-	ResolvedIPs string
+	resolvedIPs ResolvedIPs
+}
+
+func (d *DomainInfo) AddResolvedIP(ipAddress string) {
+	d.resolvedIPs.Add(ipAddress)
+}
+
+func (d *DomainInfo) GetResolvedIPs() *ResolvedIPs {
+	return &d.resolvedIPs
+}
+
+type ResolvedIPs struct {
+	items []string
+}
+
+func (r *ResolvedIPs) Add(ipAddress string) {
+	r.items = append(r.items, ipAddress)
+}
+
+func (r *ResolvedIPs) Get(i int) string {
+	if i < 0 || i >= len(r.items) {
+		return ""
+	}
+	return r.items[i]
+}
+
+func (r *ResolvedIPs) Size() int {
+	return len(r.items)
 }
 
 // Add new PeerInfo to the collection