Refactor: Rename DocumentOperator to DocumentService

Updated project and solution files to rename and restructure
`DocumentOperator` to `DocumentService`. Modified project
references in `DocumentService.API.csproj`, `DocumentService.Application.csproj`,
and `DocumentService.Infrastructure.csproj` to reflect the new
naming convention. Updated `DocumentService.sln` to remove
old project references, add new ones, and adjust configuration
and nested project mappings accordingly. This change aligns
the project structure with the new naming convention.

DocumentService.API/Properties/PublishProfiles/IISProfile.pubxml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- https://go.microsoft.com/fwlink/?LinkID=208121. -->
+<Project>
+	<PropertyGroup>
+		<WebPublishMethod>Package</WebPublishMethod>
+		<LastUsedBuildConfiguration>Release</LastUsedBuildConfiguration>
+		<LastUsedPlatform>Any CPU</LastUsedPlatform>
+		<SiteUrlToLaunchAfterPublish />
+		<LaunchSiteAfterPublish>true</LaunchSiteAfterPublish>
+		<ExcludeApp_Data>false</ExcludeApp_Data>
+		<ProjectGuid>c60bc965-d293-ea64-b153-1941f0648df4</ProjectGuid>
+		<DesktopBuildPackageLocation>M:\App&amp;Service\0 DD - Smart UP\DocumentService\PreRelease\API\net8\$(Version)\DocumentService.API.zip</DesktopBuildPackageLocation>
+		<PackageAsSingleFile>true</PackageAsSingleFile>
+		<DeployIisAppPath>DocumentService.API</DeployIisAppPath>
+		<_TargetId>IISWebDeployPackage</_TargetId>
+		<TargetFramework>net8.0</TargetFramework>
+	</PropertyGroup>
+</Project>

DocumentService.API/Properties/launchSettings.json

@@ -0,0 +1,41 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:62933",
+      "sslPort": 44304
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "http://localhost:5028",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7186;http://localhost:5028",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}