Update NuGet packages, publish profiles, and config

- Bump Microsoft.NET.Test.Sdk, xunit.v3, MailKit, MimeKit, SixLabors.ImageSharp, Microsoft.Data.SqlClient, and Microsoft.Identity.Client.Extensions.Msal to latest patch versions
- Publish ZIP filename now includes environment name (Development/Production) in Fuchs.csproj
- Add FolderProfile-Dev.pubxml (Development) and FolderProfile.pubxml (Production) with EnvironmentName property
- Fix connection string keys in appsettings.Development.json to match production; set IsTestDeployment=true for development
- Set production DB and Azure Storage container names in appsettings.json; IsTestDeployment=false for production
- Mark OCORE, OCORE_web, and eRechnungLib submodules as dirty (local changes)

Fuchs/Properties/PublishProfiles/FolderProfile-Dev.pubxml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- https://go.microsoft.com/fwlink/?LinkID=208121. -->
+<Project>
+  <PropertyGroup>
+    <DeleteExistingFiles>true</DeleteExistingFiles>
+    <ExcludeApp_Data>false</ExcludeApp_Data>
+    <LaunchSiteAfterPublish>true</LaunchSiteAfterPublish>
+    <LastUsedBuildConfiguration>Debug</LastUsedBuildConfiguration>
+    <LastUsedPlatform>x64</LastUsedPlatform>
+    <PublishProvider>FileSystem</PublishProvider>
+    <PublishUrl>Q:\PWProjects\Fuchs_Intranet_Dev</PublishUrl>
+    <WebPublishMethod>FileSystem</WebPublishMethod>
+    <_TargetId>Folder</_TargetId>
+    <SiteUrlToLaunchAfterPublish />
+    <TargetFramework>net10.0</TargetFramework>
+    <RuntimeIdentifier>win-x64</RuntimeIdentifier>
+    <ProjectGuid>2856176d-cda6-1be2-0ce0-d72c26fb4f35</ProjectGuid>
+    <SelfContained>false</SelfContained>
+    <EnvironmentName>Development</EnvironmentName>
+  </PropertyGroup>
+</Project>