Fix merge conflict resolution - restore deleted environment and setup lines

Restored lines that were accidentally deleted during merge:
- Dockerfile: WORKDIR, ENV variables (HOST_DIR, FRONTEND_HOST_DIR), and RUN mkdir commands
- Backend/Dockerfile: ENV variables (ASPNETCORE_URLS, COMBINE_IS_IN_CONTAINER, ASPNETCORE_ENVIRONMENT, DOTNET_PRINT_TELEMETRY_MESSAGE, HOME)

Co-authored-by: imnasnainaec <6411521+imnasnainaec@users.noreply.github.com>

Author: Copilot

Backend/Dockerfile

@@ -20,6 +20,14 @@ RUN dotnet publish -c Release -o build
 
 # Build runtime image.
 FROM mcr.microsoft.com/dotnet/aspnet:8.0.21-jammy@sha256:f771a2d3a545a24e01685c4bda33d5f671ea3f31c4691bde036838c0efee025c
+
+ENV ASPNETCORE_URLS=http://+:5000
+ENV COMBINE_IS_IN_CONTAINER=1
+ENV ASPNETCORE_ENVIRONMENT=Production
+ENV DOTNET_PRINT_TELEMETRY_MESSAGE=false
+
+# Set the home directory to the app user's home.
+ENV HOME=/home/app
 ENV APP_HOME=${HOME}/backend
 ENV APP_FILES=${HOME}/.CombineFiles
 

Dockerfile

@@ -38,6 +38,17 @@ RUN npm run build
 # Production environment.
 FROM nginx:1.29.3@sha256:bd1578eec775d0b28fd7f664b182b7e1fb75f1dd09f92d865dababe8525dfe8b
 
+WORKDIR /app
+
+ENV HOST_DIR=/usr/share/nginx
+ENV FRONTEND_HOST_DIR=${HOST_DIR}/html
+
+RUN mkdir /etc/nginx/templates
+RUN mkdir /etc/nginx/page_templates
+RUN mkdir ${HOST_DIR}/fonts
+RUN mkdir ${FRONTEND_HOST_DIR}/scripts
+RUN mkdir ${FRONTEND_HOST_DIR}/url_moved
+
 # Setup web content
 COPY --from=user_guide_builder /app/docs/user_guide/site ${HOST_DIR}/user_guide
 COPY --from=frontend_builder /app/dist ${FRONTEND_HOST_DIR}