adding LANG LC_ALL PYTHONIOENCODING UTF-8 (#22928)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

api/docker/entrypoint.sh

@@ -2,6 +2,11 @@
 
 set -e
 
+# Set UTF-8 encoding to address potential encoding issues in containerized environments
+export LANG=${LANG:-en_US.UTF-8}
+export LC_ALL=${LC_ALL:-en_US.UTF-8}
+export PYTHONIOENCODING=${PYTHONIOENCODING:-utf-8}
+
 if [[ "${MIGRATION_ENABLED}" == "true" ]]; then
   echo "Running migrations"
   flask upgrade-db