feat: Added gorm.io/gorm and gorm.io/driver/sqlite dependencies, initialized service registry database with SQLite backend

pkg/models/service.go

@@ -0,0 +1,12 @@
+package models
+
+import "gorm.io/gorm"
+
+type Service struct {
+	gorm.Model
+	Name     string
+	NodeType string
+	Address  string
+	Port     int
+	Status   string
+}