Implement InMemory Transport Layer for StellaOps Router

- Added InMemoryTransportOptions class for configuration settings including timeouts and latency.
- Developed InMemoryTransportServer class to handle connections, frame processing, and event management.
- Created ServiceCollectionExtensions for easy registration of InMemory transport services.
- Established project structure and dependencies for InMemory transport library.
- Implemented comprehensive unit tests for endpoint discovery, connection management, request/response flow, and streaming capabilities.
- Ensured proper handling of cancellation, heartbeat, and hello frames within the transport layer.

src/__Libraries/StellaOps.Router.Config/PayloadLimits.cs

@@ -1,25 +0,0 @@
-namespace StellaOps.Router.Config;
-
-/// <summary>
-/// Configuration for payload and memory limits.
-/// </summary>
-public sealed class PayloadLimits
-{
-    /// <summary>
-    /// Gets or sets the maximum request bytes per call.
-    /// Default: 10 MB.
-    /// </summary>
-    public long MaxRequestBytesPerCall { get; set; } = 10 * 1024 * 1024;
-
-    /// <summary>
-    /// Gets or sets the maximum request bytes per connection.
-    /// Default: 100 MB.
-    /// </summary>
-    public long MaxRequestBytesPerConnection { get; set; } = 100 * 1024 * 1024;
-
-    /// <summary>
-    /// Gets or sets the maximum aggregate in-flight bytes across all requests.
-    /// Default: 1 GB.
-    /// </summary>
-    public long MaxAggregateInflightBytes { get; set; } = 1024 * 1024 * 1024;
-}

src/__Libraries/StellaOps.Router.Config/RouterConfig.cs

@@ -1,3 +1,5 @@
+using StellaOps.Router.Common.Models;
+
 namespace StellaOps.Router.Config;
 
 /// <summary>

src/__Libraries/StellaOps.Router.Config/ServiceConfig.cs

@@ -1,4 +1,5 @@
-using StellaOps.Router.Common;
+using StellaOps.Router.Common.Enums;
+using StellaOps.Router.Common.Models;
 
 namespace StellaOps.Router.Config;