Refactor Notification Email Structure in Customer and User Services

- Updated the email notification logic in the customer and user service layers to utilize the new notification Model struct, enhancing the clarity and consistency of notification requests.
- Modified the email content to include structured fields such as Title, Message, Type, Priority, and UserID, improving the overall notification management.
- Ensured that all relevant service methods (Register, UpdateStatus, RequestResetPassword, ResetPassword) are updated to reflect these changes, promoting a unified approach to notification handling.

internal/user/service.go

@@ -117,7 +117,14 @@ func (s *userService) Register(ctx context.Context, form *CreateUserForm) (*User
 		"role":     user.Role,
 	})
 
-	go s.notification.SendEmail(ctx, form.Email, fmt.Sprintf("Welcome to Tender Management\nUsername: %s\nPassword: %s", form.Username, form.Password), user.ID.Hex())
+	go s.notification.SendEmail(ctx, notification.Model{
+		Recipient: form.Email,
+		Title:     "Welcome to Opplens",
+		Message:   fmt.Sprintf("Welcome to Opplens\nUsername: %s\nPassword: %s", form.Username, form.Password),
+		Type:      "info",
+		Priority:  "important",
+		UserID:    user.ID.Hex(),
+	})
 
 	return user.ToResponse(), nil
 }
@@ -221,7 +228,14 @@ func (s *userService) UpdateStatus(ctx context.Context, id string, form *UpdateU
 		"status":  form.Status,
 	})
 
-	go s.notification.SendEmail(ctx, user.Email, fmt.Sprintf("Your account has been %s", strings.ToUpper(form.Status)), user.ID.Hex())
+	go s.notification.SendEmail(ctx, notification.Model{
+		Recipient: user.Email,
+		Title:     "Account Status Updated",
+		Message:   fmt.Sprintf("Your account has been %s", strings.ToUpper(form.Status)),
+		Type:      "warning",
+		Priority:  "important",
+		UserID:    user.ID.Hex(),
+	})
 
 	return nil
 }
@@ -456,7 +470,14 @@ func (s *userService) ChangePassword(ctx context.Context, userID string, form *C
 		"user_id": userID,
 	})
 
-	go s.notification.SendEmail(ctx, user.Email, "Your password has been reset successfully", user.ID.Hex())
+	go s.notification.SendEmail(ctx, notification.Model{
+		Recipient: user.Email,
+		Title:     "Password Reset Success",
+		Message:   "Your password has been reset successfully",
+		Type:      "info",
+		Priority:  "important",
+		UserID:    user.ID.Hex(),
+	})
 
 	return nil
 }