fix(tui): resolve crash by removing --non-interactive and adding defensive rendering

scripts/diag-croatoan.lisp

@@ -0,0 +1,9 @@
+(load (merge-pathnames "quicklisp/setup.lisp" (user-homedir-pathname)))
+(ql:quickload :croatoan :silent t)
+(handler-case
+    (croatoan:with-screen (scr)
+      (format t "Screen height: ~s~%" (croatoan:height scr))
+      (format t "Screen width: ~s~%" (croatoan:width scr))
+      (finish-output))
+  (error (c) (format t "Croatoan Error: ~a~%" c)))
+(uiop:quit 0)