feat(cli): Rich UX polish and hero asset placeholder

Closes #39

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: ulises-jeremias

packages/create-awesome-python-app/README.md

@@ -1,8 +1,11 @@
 # create-awesome-python-app
 
+![banner](./assets/hero.svg)
+
 CLI package. Framework: **Typer** (chosen over Click for richer typing/help).
 
 ```bash
 uv run create-awesome-python-app --help
 uvx create-awesome-python-app@latest my-app   # after PyPI publish
+pipx run create-awesome-python-app my-app
 ```