.NET: Rename workflows projects (#975)

* Renaming Microsoft.Agent.Workflows to Microsoft.Agents.AI.Workflows

* Removing local settings.

* Removing remining old files from merge.

dotnet/src/Microsoft.Agents.AI.Workflows/ScopeKey.cs

@@ -0,0 +1,68 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System;
+using System.Text.Json.Serialization;
+using Microsoft.Shared.Diagnostics;
+
+namespace Microsoft.Agents.AI.Workflows;
+
+/// <summary>
+/// Represents a unique key within a specific scope, combining a scope identifier and a key string.
+/// </summary>
+public sealed class ScopeKey
+{
+    /// <summary>
+    /// The identifier for the scope associated with this key.
+    /// </summary>
+    public ScopeId ScopeId { get; }
+
+    /// <summary>
+    /// The unique key within the specified scope.
+    /// </summary>
+    public string Key { get; }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ScopeKey"/> class.
+    /// </summary>
+    /// <param name="executorId">The unique identifier for the executor.</param>
+    /// <param name="scopeName">The name of the scope, if any.</param>
+    /// <param name="key">The unique key within the specified scope.</param>
+    public ScopeKey(string executorId, string? scopeName, string key)
+        : this(new ScopeId(Throw.IfNullOrEmpty(executorId), scopeName), key)
+    { }
+
+    /// <summary>
+    /// Iniitalizes a new instance of the <see cref="ScopeKey"/> class.
+    /// </summary>
+    /// <param name="scopeId">The <see cref="ScopeId"/> associated with this key.</param>
+    /// <param name="key">The unique key within the specified scope.</param>
+    [JsonConstructor]
+    public ScopeKey(ScopeId scopeId, string key)
+    {
+        this.ScopeId = Throw.IfNull(scopeId);
+        this.Key = Throw.IfNullOrEmpty(key);
+    }
+
+    /// <inheritdoc/>
+    public override string ToString()
+    {
+        return $"{this.ScopeId}/{this.Key}";
+    }
+
+    /// <inheritdoc/>
+    public override bool Equals(object? obj)
+    {
+        if (obj is ScopeKey other)
+        {
+            // Unlike ScopeId, ScopeKey is equal only if both the Executor and ScopeName are the same
+            return this.ScopeId.Equals(other.ScopeId) && this.Key == other.Key;
+        }
+        return false;
+    }
+
+    /// <inheritdoc/>
+    public override int GetHashCode()
+    {
+        return HashCode.Combine(this.ScopeId, this.Key);
+    }
+}