Перенёс Dockerfile

ApplicationLayer/Dockerfile

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+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+WORKDIR /src
+COPY ../ ./
+RUN dotnet restore
+RUN dotnet publish "SchengenVisaApi/SchengenVisaApi.csproj" -c Release -o /app/publish
+
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS runtime
+WORKDIR /app
+COPY --from=build /app/publish ./
+EXPOSE 5000
+ENTRYPOINT ["dotnet", "SchengenVisaApi.dll"]