[BUG] static route example doesn't work with fastapp

[lucasvw]

Describe the bug

In the docs, there is an example for serving static files:

from fasthtml.common import *

app = FastHTML()
rt = app.route
cli = Client(app)

reg_re_param("imgext", "ico|gif|jpg|jpeg|webm")

@rt(r'/static/{fn}.{ext:imgext}')
def get(fn:str, ext:str): return f"Getting {fn}.{ext}"

print(cli.get('/static/jph.ico').text)

And this works. However, when using fast_app() instead of FastHTML this no longer works:

from fasthtml.common import *

app, rt = fast_app()
cli = Client(app)

reg_re_param("imgext", "ico|gif|jpg|jpeg|webm")

@rt(r'/static/{fn}.{ext:imgext}')
def get(fn:str, ext:str): return f"Getting {fn}.{ext}"

print(cli.get('/static/jph.ico').text)

Minimal Reproducible Example
See above

Expected behavior
I expect that getting the routes through:

app = FastHTML()
rt = app.route

and

app, rt = fast_app()

would behave similarly, but they don't

Environment Information
Please provide the following version information:

• fastlite version: 0.2.1
• fastcore version: 1.8.7
• fasthtml version: 0.12.22

Confirmation
Please confirm the following:

• I have read the FAQ (https://docs.fastht.ml/explains/faq.html) --> bad link
• I have provided a minimal reproducible example
• I have included the versions of fastlite, fastcore, and fasthtml
• I understand that this is a volunteer open source project with no commercial support.

Additional context
I understand that with fast_app we can also use static_path argument to hook up static files, however I still think it's a bug since there is no reason to assume rt behaves differently in both cases.