Enhance API Documentation for Notification Target Audience

- Added "target" field reference to the notification request and response structures in Swagger documentation, improving clarity for API consumers.
- Introduced "notification.TargetAudienceType" definition with enumerated values for target audience options, enhancing the API's usability and understanding.
- Updated related documentation files (YAML and JSON) to reflect these changes, ensuring consistency across all API documentation formats.

cmd/web/docs/swagger.yaml

@@ -666,6 +666,8 @@ definitions:
         type: array
       schedule:
         $ref: '#/definitions/notification.ScheduleRequest'
+      target:
+        $ref: '#/definitions/notification.TargetAudienceType'
       tender:
         type: string
       title:
@@ -689,6 +691,8 @@ definitions:
         $ref: '#/definitions/notification.NotificationPriority'
       schedule:
         $ref: '#/definitions/notification.ScheduleResponse'
+      target:
+        $ref: '#/definitions/notification.TargetAudienceType'
       tender:
         type: string
       title:
@@ -743,6 +747,26 @@ definitions:
       time:
         type: integer
     type: object
+  notification.TargetAudienceType:
+    enum:
+    - all_users
+    - specific_users
+    - all_role
+    - specific_role
+    - all_companies
+    - specific_company
+    - all_customers
+    - specific_customer
+    type: string
+    x-enum-varnames:
+    - TargetAudienceAllUsers
+    - TargetAudienceSpecificUsers
+    - TargetAudienceAllRole
+    - TargetAudienceSpecificRole
+    - TargetAudienceAllCompanies
+    - TargetAudienceSpecificCompany
+    - TargetAudienceAllCustomers
+    - TargetAudienceSpecificCustomer
   response.APIError:
     properties:
       code: