fix(.gitignore): add !lib/ to prevent ignoring project lib directory

The Python template section of .gitignore includes a `lib/` pattern
that was inadvertently ignoring the project's lib/ directory containing
console-text-color-themes.sh and parseOpts.sh. Add `!lib/` negation
(matching the existing `!bin/` pattern) to ensure the lib directory
is properly tracked.

Co-authored-by: 李鼎 <oldratlee@gmail.com>

Author: cursoragent

.gitignore

@@ -14,7 +14,7 @@ colorEcho() {
   if [ -t 1 ]; then
     printf '\e[%sm%s\e[0m\n' "$combination" "$*"
   else
-    print '%s\n' "$*"
+    printf '%s\n' "$*"
   fi
 }