Integrate Notification Management into Tender Management System

- Added a new notification domain, including entities, services, handlers, and repositories to manage notifications effectively.
- Implemented CRUD operations for notifications, allowing for creation, retrieval, updating, and deletion of notifications via the API.
- Enhanced API documentation with Swagger comments for new notification endpoints, ensuring clarity for API consumers.
- Updated routes to include notification management, improving administrative capabilities within the web panel.
- Introduced validation for notification requests and responses, ensuring data integrity and proper error handling.
- Updated the go.mod file to include the latest version of the go-redis library, ensuring compatibility with the notification service.

internal/notification/entity.go

@@ -0,0 +1,110 @@
+package notification
+
+import (
+	"tm/pkg/mongo"
+
+	"go.mongodb.org/mongo-driver/v2/bson"
+)
+
+// NotificationType represents the type of notification
+type NotificationType string
+
+const (
+	NotificationTypeInfo    NotificationType = "info"
+	NotificationTypeWarning NotificationType = "warning"
+	NotificationTypeAlert   NotificationType = "alert"
+	NotificationTypeReject  NotificationType = "reject"
+)
+
+// NotificationPriority represents the priority level of notification
+type NotificationPriority string
+
+const (
+	NotificationPriorityLow       NotificationPriority = "low"
+	NotificationPriorityMedium    NotificationPriority = "medium"
+	NotificationPriorityImportant NotificationPriority = "important"
+)
+
+// DeliveryChannel represents the delivery channel for notification
+type DeliveryChannel string
+
+const (
+	DeliveryChannelPush  DeliveryChannel = "push"
+	DeliveryChannelEmail DeliveryChannel = "email"
+)
+
+// DeliveryStatus represents the delivery status of notification
+type NotificationStatus string
+
+const (
+	DeliveryStatusPending NotificationStatus = "pending"
+	DeliveryStatusSent    NotificationStatus = "sent"
+	DeliveryStatusFailed  NotificationStatus = "failed"
+)
+
+// TargetAudienceType represents the type of target audience
+// Supported audience types:
+// - all_users: All users in the system
+// - specific_users: Specific users by their IDs
+// - all_role: All users with a specific role (e.g., all admins)
+// - specific_role: Users with a specific role, optionally filtered by tender
+// - specific_company: All users belonging to a specific company
+// - all_companies: All users from all companies
+// - specific_customer: All users belonging to a specific customer
+// - all_customers: All users from all customers
+type TargetAudienceType string
+
+const (
+	TargetAudienceAllUsers         TargetAudienceType = "all_users"
+	TargetAudienceSpecificUsers    TargetAudienceType = "specific_users"
+	TargetAudienceAllRole          TargetAudienceType = "all_role"
+	TargetAudienceSpecificRole     TargetAudienceType = "specific_role"
+	TargetAudienceAllCompanies     TargetAudienceType = "all_companies"
+	TargetAudienceSpecificCompany  TargetAudienceType = "specific_company"
+	TargetAudienceAllCustomers     TargetAudienceType = "all_customers"
+	TargetAudienceSpecificCustomer TargetAudienceType = "specific_customer"
+)
+
+// Notification represents a notification entity
+type Notification struct {
+	mongo.Model `bson:",inline"`
+	Recipient   []string             `bson:"recipients"`
+	Tender      bson.ObjectID        `bson:"tender"`
+	Channels    []DeliveryChannel    `bson:"channels"`
+	Type        NotificationType     `bson:"type"`
+	Priority    NotificationPriority `bson:"priority"`
+	Status      NotificationStatus   `bson:"status"`
+	Target      TargetAudienceType   `bson:"target"`
+	Title       string               `bson:"title"`
+	Description string               `bson:"description"`
+	Link        *string              `bson:"link"`
+	Schedule    Schedule             `bson:"schedule"`
+}
+
+type Schedule struct {
+	Time int64 `bson:"time"`
+}
+
+func (n *Notification) SetID(id string) {
+	n.ID, _ = bson.ObjectIDFromHex(id)
+}
+
+func (n *Notification) GetID() string {
+	return n.ID.Hex()
+}
+
+func (n *Notification) SetCreatedAt(timestamp int64) {
+	n.CreatedAt = timestamp
+}
+
+func (n *Notification) SetUpdatedAt(timestamp int64) {
+	n.UpdatedAt = timestamp
+}
+
+func (n *Notification) GetCreatedAt() int64 {
+	return n.CreatedAt
+}
+
+func (n *Notification) GetUpdatedAt() int64 {
+	return n.UpdatedAt
+}