add basic backend workflow

backend/scripts/test.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+# ensure server is not started
+curl -s -X POST localhost:7001/admin/shutdown 2>&1 > /dev/null
+
+# start server
+cargo run --features shutdown -- --port 7001 2>&1 > logs/nuchat.log & 
+
+# run tests
+cargo test | tee logs/test-output.log