feat(lmxproxy): phase 1 — v2 protocol types and domain model

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

lmxproxy/src-reference/ZB.MOM.WW.LmxProxy.Host/appsettings.Production.json

@@ -0,0 +1,40 @@
+{
+  "Serilog": {
+    "MinimumLevel": {
+      "Default": "Information",
+      "Override": {
+        "Microsoft": "Warning",
+        "System": "Warning",
+        "Grpc": "Information"
+      }
+    },
+    "WriteTo": [
+      {
+        "Name": "Console",
+        "Args": {
+          "formatter": "Serilog.Formatting.Compact.CompactJsonFormatter, Serilog.Formatting.Compact"
+        }
+      },
+      {
+        "Name": "File",
+        "Args": {
+          "path": "logs/lmxproxy-.json",
+          "rollingInterval": "Day",
+          "retainedFileCountLimit": 30,
+          "formatter": "Serilog.Formatting.Compact.RenderedCompactJsonFormatter, Serilog.Formatting.Compact"
+        }
+      }
+    ],
+    "Enrich": [
+      "FromLogContext",
+      "WithMachineName",
+      "WithThreadId",
+      "WithProcessId",
+      "WithEnvironmentName"
+    ],
+    "Properties": {
+      "Application": "LmxProxy",
+      "Environment": "Production"
+    }
+  }
+}