feat: add proxy geo location

backend/internal/service/proxy.go

@@ -35,6 +35,11 @@ type ProxyWithAccountCount struct {
 	LatencyMs      *int64
 	LatencyStatus  string
 	LatencyMessage string
+	IPAddress      string
+	Country        string
+	CountryCode    string
+	Region         string
+	City           string
 }
 
 type ProxyAccountSummary struct {