feat: update environment configuration and add script for rewriting dump URLs

entrypoint.sh

@@ -9,8 +9,11 @@ cd "$APP_DIR"
 mkdir -p logs static
 
 if [ ! -f "$APP_DIR/db.sqlite3" ] && [ "${LOAD_FIXTURE_ON_EMPTY_DB:-true}" = "true" ]; then
+  TMP_DUMP="$(mktemp)"
+  python /app/scripts/rewrite_dumps.py dumps/example.json "$TMP_DUMP"
   python manage.py migrate
-  python manage.py loaddata dumps/example.json
+  python manage.py loaddata "$TMP_DUMP"
+  rm -f "$TMP_DUMP"
 else
   python manage.py migrate
 fi
@@ -19,4 +22,9 @@ fi
 # Collect them into STATIC_ROOT so the explicit /static/ URL can serve them.
 python manage.py collectstatic --noinput
 
+if grep -aEq '127\.0\.0\.1|provider:8002' "$APP_DIR/db.sqlite3"; then
+  echo "Refusing to start: bootstrap data still contains internal/local URLs" >&2
+  exit 1
+fi
+
 exec python manage.py runserver 0.0.0.0:"$PORT"