Created install.sh and build.sh

Also refactored methods to work as a zipapp

build.sh

@@ -1,3 +1,5 @@
 #!/usr/bin/env sh
 # uv export > requirements.txt
+# mkdir if not exists release
+mkdir -p release
 python -m zipapp src --compress --output=release/pyshelf --python="/usr/bin/env python"