Initial import of the CBDDC codebase with docs and tests. Add a .NET-focused gitignore to keep generated artifacts out of source control.

src/ZB.MOM.WW.CBDDC.Core/Network/IPeerNodeConfigurationProvider.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Threading.Tasks;
+
+namespace ZB.MOM.WW.CBDDC.Core.Network;
+
+/// <summary>
+/// Represents a method that handles peer node configuration change notifications.
+/// </summary>
+/// <param name="sender">The source of the event.</param>
+/// <param name="newConfig">The updated peer node configuration.</param>
+public delegate void PeerNodeConfigurationChangedEventHandler(object? sender, PeerNodeConfiguration newConfig);
+
+/// <summary>
+/// Defines a contract for retrieving and monitoring configuration settings for a peer node.
+/// </summary>
+/// <remarks>Implementations of this interface provide access to the current configuration and notify subscribers
+/// when configuration changes occur. This interface is typically used by components that require up-to-date
+/// configuration information for peer-to-peer networking scenarios.</remarks>
+public interface IPeerNodeConfigurationProvider
+{
+    /// <summary>
+    /// Asynchronously retrieves the current configuration settings for the peer node.
+    /// </summary>
+    /// <returns>
+    /// A task that represents the asynchronous operation. The task result contains the current
+    /// <see cref="PeerNodeConfiguration"/>.
+    /// </returns>
+    public Task<PeerNodeConfiguration> GetConfiguration();
+
+    /// <summary>
+    /// Occurs when the configuration of the peer node changes.
+    /// </summary>
+    /// <remarks>Subscribe to this event to be notified when any configuration settings for the peer node are
+    /// modified. Event handlers can use this notification to update dependent components or respond to configuration
+    /// changes as needed.</remarks>
+
+    public event PeerNodeConfigurationChangedEventHandler? ConfigurationChanged;
+}