fix(devgen-cli): Update devgen-cli to v0.2.1

- **Bug Fixes**
    - `devgen-cli`: Updated the internal CLI tool to version `0.2.1`, addressing minor issues or improving stability.

uv.lock

@@ -189,7 +189,7 @@ wheels = [
 
 [[package]]
 name = "devgen-cli"
-version = "0.2.0"
+version = "0.2.1"
 source = { editable = "." }
 dependencies = [
     { name = "anthropic" },