feat: added ProductAdapter class

- included relationship with TagAdapter

Inventory/ProductAdapter.cs

@@ -0,0 +1,59 @@
+using Core.Blueprint.Mongo;
+using MongoDB.Bson;
+using MongoDB.Bson.Serialization.Attributes;
+using System.Text.Json.Serialization;
+
+namespace Core.Adapters.Lib.Inventory
+{
+    /// <summary>
+    /// Represents the possible statuses of a product.
+    /// </summary>
+    public enum ProductStatus
+    {
+        Active,
+        Inactive,
+        Discontinued
+    }
+
+    [CollectionAttributeName("Product")]
+    public class ProductAdapter : Document
+    {
+        /// <summary>
+        /// Gets or sets the foreign key to the owning Tenant.
+        /// </summary>
+        [BsonElement("tenantId")]
+        [JsonPropertyName("tenantId")]
+        public string TenantId { get; set; } = null!;
+
+        /// <summary>
+        /// Gets or sets the name of the product.
+        /// </summary>
+        [BsonElement("productName")]
+        [JsonPropertyName("productName")]
+        public string ProductName { get; set; } = null!;
+
+        /// <summary>
+        /// Gets or sets the description of the product.
+        /// </summary>
+        [BsonElement("description")]
+        [JsonPropertyName("description")]
+        public string Description { get; set; } = null!;
+
+        /// <summary>
+        /// Gets or sets the status of the product. Stored as a string in MongoDB.
+        /// </summary>
+        [BsonElement("status")]
+        [JsonPropertyName("status")]
+        [BsonRepresentation(BsonType.String)]
+        public ProductStatus Status { get; set; }
+
+        /// <summary>
+        /// Gets or sets the list of Tag Ids associated with this product.
+        /// This follows the standard MongoDB practice for many-to-many relationships
+        /// by embedding an array of references.
+        /// </summary>
+        [BsonElement("tagIds")]
+        [JsonPropertyName("tagIds")]
+        public List<ObjectId> TagIds { get; set; } = new List<ObjectId>();
+    }
+}