feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

app/models/whois.go

@@ -0,0 +1,23 @@
+package models
+
+import (
+	"time"
+
+	"github.com/lib/pq"
+
+	"rsgit.ru/rsmon/rsmon/app/models/concerns"
+)
+
+// Whois provides functionality.
+type Whois struct {
+	concerns.Model
+
+	MonitorID *int64
+	Monitor   *Monitor
+
+	Tld         string
+	Nameservers pq.StringArray `gorm:"type:varchar(255)[]"`
+	Expires     *time.Time
+	UpdatedAt   *time.Time
+	Data        string
+}