Add project files.

Core.Blueprint.Mongo/Entities/Document.cs

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+using Core.Blueprint.Mongo;
+using MongoDB.Bson;
+using MongoDB.Bson.Serialization.Attributes;
+using System.Text.Json.Serialization;
+
+public class Document : IDocument
+{
+    /// <summary>
+    /// Gets or sets the MongoDB ObjectId for the document. 
+    /// This property is automatically generated if not provided. 
+    /// It is used as the primary key for the document in MongoDB.
+    /// </summary>
+    [BsonId]
+    [BsonElement("_id")]
+    [BsonRepresentation(BsonType.ObjectId)]
+    [JsonPropertyName("_id")]
+    public string _Id { get; init; }
+
+    /// <summary>
+    /// Gets or sets a unique identifier for the document, represented as a string (GUID).
+    /// This value is automatically generated if not provided and can be used as a secondary key.
+    /// </summary>
+    [BsonElement("id")]
+    [BsonRepresentation(BsonType.String)]
+    [JsonPropertyName("id")]
+    public string Id { get; init; }
+
+    /// <summary>
+    /// Gets or sets the timestamp of when the document was created. 
+    /// This value is automatically set to the current UTC time when the document is created.
+    /// </summary>
+    [BsonElement("createdAt")]
+    [BsonRepresentation(BsonType.DateTime)]
+    [JsonPropertyName("createdAt")]
+    public DateTime CreatedAt { get; init; }
+
+    /// <summary>
+    /// Gets or sets the user or system who created the document.
+    /// This field can be used for audit purposes.
+    /// </summary>
+    [BsonElement("createdBy")]
+    [BsonRepresentation(BsonType.String)]
+    [JsonPropertyName("createdBy")]
+    public string? CreatedBy { get; set; }
+
+    /// <summary>
+    /// Gets or sets the timestamp of when the document was last updated.
+    /// This value is nullable and will be set to null if the document has never been updated.
+    /// </summary>
+    [BsonElement("updatedAt")]
+    [BsonRepresentation(BsonType.DateTime)]
+    [JsonPropertyName("updatedAt")]
+    public DateTime? UpdatedAt { get; set; } = null;
+
+    /// <summary>
+    /// Gets or sets the user or system who last updated the document.
+    /// This field can be used for audit purposes.
+    /// </summary>
+    [BsonElement("updatedBy")]
+    [BsonRepresentation(BsonType.String)]
+    [JsonPropertyName("updatedBy")]
+    public string? UpdatedBy { get; set; } = null;
+
+    /// <summary>
+    /// Gets or sets the status of the document. 
+    /// The status is represented by an enum and defaults to <see cref="StatusEnum.Active"/>.
+    /// </summary>
+    [BsonElement("status")]
+    [BsonRepresentation(BsonType.String)]
+    [JsonPropertyName("status")]
+    [JsonConverter(typeof(JsonStringEnumConverter))]
+    public StatusEnum? Status { get; set; }
+
+    public Document()
+    {
+        _Id = ObjectId.GenerateNewId().ToString();
+        Id = Guid.NewGuid().ToString();
+        CreatedAt = DateTime.UtcNow;
+        Status = StatusEnum.Active;
+    }
+}

Core.Blueprint.Mongo/Entities/StatusEnum.cs

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+using System.Text.Json.Serialization;
+
+namespace Core.Blueprint.Mongo
+{
+    /// <summary>
+    /// Represents the status of a document or entity. This enum is used to track the state of a document 
+    /// within the system. The `JsonStringEnumConverter` ensures that the enum values are serialized as strings 
+    /// in JSON format, rather than as numeric values.
+    /// </summary>
+    [JsonConverter(typeof(JsonStringEnumConverter))]
+    public enum StatusEnum
+    {
+        /// <summary>
+        /// Represents an active document or entity.
+        /// </summary>
+        Active = 0,
+
+        /// <summary>
+        /// Represents an inactive document or entity.
+        /// </summary>
+        Inactive = 1,
+
+        /// <summary>
+        /// Represents a deleted document or entity.
+        /// </summary>
+        Deleted = 2
+    }
+}