deprecate(lmxproxy): move all LmxProxy code, tests, and docs to deprecated/

LmxProxy is no longer needed. Moved the entire lmxproxy/ workspace, DCL
adapter files, and related docs to deprecated/. Removed LmxProxy registration
from DataConnectionFactory, project reference from DCL, protocol option from
UI, and cleaned up all requirement docs.

deprecated/lmxproxy/src-reference/ZB.MOM.WW.LmxProxy.Host/Program.cs

@@ -0,0 +1,87 @@
+using System;
+using System.IO;
+using Microsoft.Extensions.Configuration;
+using Serilog;
+using Topshelf;
+using ZB.MOM.WW.LmxProxy.Host.Configuration;
+
+namespace ZB.MOM.WW.LmxProxy.Host
+{
+    internal class Program
+    {
+        private static void Main(string[] args)
+        {
+            // Build configuration
+            IConfigurationRoot? configuration = new ConfigurationBuilder()
+                .SetBasePath(Directory.GetCurrentDirectory())
+                .AddJsonFile("appsettings.json", true, true)
+                .AddEnvironmentVariables()
+                .Build();
+
+            // Configure Serilog from appsettings.json
+            Log.Logger = new LoggerConfiguration()
+                .ReadFrom.Configuration(configuration)
+                .CreateLogger();
+
+            try
+            {
+                Log.Information("Starting ZB.MOM.WW.LmxProxy.Host");
+
+                // Load configuration
+                var config = new LmxProxyConfiguration();
+                configuration.Bind(config);
+
+                // Validate configuration
+                if (!ConfigurationValidator.ValidateAndLog(config))
+                {
+                    Log.Fatal("Configuration validation failed. Please check the configuration and try again.");
+                    Environment.ExitCode = 1;
+                    return;
+                }
+
+                // Configure and run the Windows service using TopShelf
+                TopshelfExitCode exitCode = HostFactory.Run(hostConfig =>
+                {
+                    hostConfig.Service<LmxProxyService>(serviceConfig =>
+                    {
+                        serviceConfig.ConstructUsing(() => new LmxProxyService(config));
+                        serviceConfig.WhenStarted(service => service.Start());
+                        serviceConfig.WhenStopped(service => service.Stop());
+                        serviceConfig.WhenPaused(service => service.Pause());
+                        serviceConfig.WhenContinued(service => service.Continue());
+                        serviceConfig.WhenShutdown(service => service.Shutdown());
+                    });
+
+                    hostConfig.UseSerilog(Log.Logger);
+
+                    hostConfig.SetServiceName("ZB.MOM.WW.LmxProxy.Host");
+                    hostConfig.SetDisplayName("SCADA Bridge LMX Proxy");
+                    hostConfig.SetDescription("Provides gRPC access to Archestra MxAccess for SCADA Bridge");
+
+                    hostConfig.StartAutomatically();
+                    hostConfig.EnableServiceRecovery(recoveryConfig =>
+                    {
+                        recoveryConfig.RestartService(config.ServiceRecovery.FirstFailureDelayMinutes);
+                        recoveryConfig.RestartService(config.ServiceRecovery.SecondFailureDelayMinutes);
+                        recoveryConfig.RestartService(config.ServiceRecovery.SubsequentFailureDelayMinutes);
+                        recoveryConfig.SetResetPeriod(config.ServiceRecovery.ResetPeriodDays);
+                    });
+
+                    hostConfig.OnException(ex => { Log.Fatal(ex, "Unhandled exception in service"); });
+                });
+
+                Log.Information("Service exited with code: {ExitCode}", exitCode);
+                Environment.ExitCode = (int)exitCode;
+            }
+            catch (Exception ex)
+            {
+                Log.Fatal(ex, "Failed to start service");
+                Environment.ExitCode = 1;
+            }
+            finally
+            {
+                Log.CloseAndFlush();
+            }
+        }
+    }
+}