Update version and enhance logging configuration

- Bump `EnvelopeGenerator.Web` version to `3.1.3`.
- Improve logging setup in `Program.cs` with NLog and Trace level.
- Modify `ServiceContainer` to accept `MSSQLServer` parameter.
- Update `ModelContainer` to utilize new database service.
- Add `warningLogs` section in `appsettings.json` for logging.
- Streamline logging rules by consolidating level properties.

EnvelopeGenerator.Web/appsettings.json

@@ -39,6 +39,11 @@
         "fileName": "${logDirectory}\\${logFileNamePrefix}-Info.log",
         "maxArchiveDays": 30
       },
+      "warningLogs": {
+        "type": "File",
+        "fileName": "${logDirectory}\\${logFileNamePrefix}-Warning.log",
+        "maxArchiveDays": 30
+      },
       "errorLogs": {
         "type": "File",
         "fileName": "${logDirectory}\\${logFileNamePrefix}-Error.log",
@@ -50,14 +55,17 @@
         "maxArchiveDays": 30
       }
     },
-    // Trace, Debug, Info, Warn, Error and *Fatal*
     "rules": [
       {
         "logger": "*",
-        "minLevel": "Info",
-        "maxLevel": "Warn",
+        "level": "Info",
         "writeTo": "infoLogs"
       },
+      {
+        "logger": "*",
+        "level": "Warn",
+        "writeTo": "warningLogs"
+      },
       {
         "logger": "*",
         "level": "Error",