Update OCORE/OCORE_web submodules, align Microsoft.Data.SqlClient to 7.0.3

Pull latest origin/main for OCORE and OCORE_web. OCORE now depends on
Microsoft.Data.SqlClient 7.0.3, so bump Fuchs and Fuchs_DataService's
own pinned reference to match and avoid an NU1605 downgrade error.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Fuchs/Fuchs.csproj

@@ -50,7 +50,7 @@
     <PackageReference Include="MimeKit" Version="4.17.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
     <!-- New packages (needed for .NET 10) -->
-    <PackageReference Include="Microsoft.Data.SqlClient" Version="7.0.2" />
+    <PackageReference Include="Microsoft.Data.SqlClient" Version="7.0.3" />
     <PackageReference Include="SixLabors.ImageSharp" Version="4.1.1" />
     <PackageReference Include="System.Configuration.ConfigurationManager" Version="10.0.12" />
     <PackageReference Include="System.Drawing.Common" Version="10.0.12" />

Fuchs_DataService/Fuchs_DataService.csproj

@@ -28,7 +28,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
-    <PackageReference Include="Microsoft.Data.SqlClient" Version="7.0.2" />
+    <PackageReference Include="Microsoft.Data.SqlClient" Version="7.0.3" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.12" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="10.0.12" />
   </ItemGroup>