add cloudron packaging and auth refinements

start.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+set -eu
+
+export NOURI_DATA_DIR="${NOURI_DATA_DIR:-/app/data}"
+mkdir -p "${NOURI_DATA_DIR}/uploads"
+
+if [ -z "${NOURI_SECRET_KEY:-}" ]; then
+  export NOURI_SECRET_KEY="cloudron-dev-secret"
+fi
+
+exec gunicorn \
+  --bind 0.0.0.0:8000 \
+  --workers 2 \
+  --threads 4 \
+  --timeout 60 \
+  wsgi:app