refactoring db; added email-verification

internal/models/membership.go

@@ -0,0 +1,12 @@
+package models
+
+import "time"
+
+type Membership struct {
+	StartDate    time.Time `json:"start_date"`
+	EndDate      time.Time `json:"end_date"`
+	Status       string    `json:"status"`
+	ID           int64     `json:"id"`
+	UserID       int64     `json:"user_id"`
+	ParentID     int64     `json:"parent_id"`
+}