Update requirement files with new feature templates and fix backend API error message, along with mobile project config updates and documentation improvements

03_source/mobile.trunk.1/dev.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+while true; do
+  yarn -D
+
+  yarn run dev
+
+  echo "restarting..."
+  sleep 1
+done