Issue when rendering shiny for python in rstudio

[aito123]

Bug description

Issue when rendering shiny for python in rstudio. It works but its sent to localhost:
Listening on http://localhost:7553/

Even if I preview in window or in viewer pane.

Steps to reproduce

---
title: "Penguin Bills"
format: dashboard
server: shiny
---

```{python}
import seaborn as sns
penguins = sns.load_dataset("penguins")
```

## {.sidebar}

```{python}
from shiny.express import render, ui
ui.input_select("x", "Variable:",
                choices=["bill_length_mm", "bill_depth_mm"])
ui.input_select("dist", "Distribution:", choices=["hist", "kde"])
ui.input_checkbox("rug", "Show rug marks", value = False)
```

## Column

```{python}
@render.plot
def displot():
    sns.displot(
        data=penguins, hue="species", multiple="stack",
        x=input.x(), rug=input.rug(), kind=input.dist())
```

Expected behavior

It should be previewed in the Viewer Pane. I opened the same R project in Vs code and when I rendered the document it renders properly.

Actual behavior

Starting python3 kernel...Done

Executing 'example_dashboard.quarto_ipynb'
  Cell 1/3: ''...Done
  Cell 2/3: ''...Done
  Cell 3/3: ''...Done

pandoc 
  to: html
  output-file: example_dashboard.html
  template: /Applications/quarto/share/formats/dashboard/template.html
  standalone: true
  section-divs: true
  html-math-method: mathjax
  wrap: none
  default-image-extension: png
  
metadata
  document-css: false
  link-citations: true
  date-format: long
  lang: en
  page-layout: custom
  title: Penguin Bills
  server:
    type: shiny
  remove-hidden: all
  
INFO:     Started server process [7919]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
Listening on http://localhost:7553/
INFO:     Uvicorn running on http://127.0.0.1:7553 (Press CTRL+C to quit)
INFO:     127.0.0.1:61299 - "GET /example_dashboard.qmd HTTP/1.1" 404 Not Found

Your environment

> sessionInfo()
R version 4.4.2 (2024-10-31)
Platform: aarch64-apple-darwin20
Running under: macOS Sequoia 15.1.1

Matrix products: default
BLAS:   /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib 
LAPACK: /Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/lib/libRlapack.dylib;  LAPACK version 3.12.0

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

time zone: America/Lima
tzcode source: internal

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
 [1] digest_0.6.37       fastmap_1.2.0       xfun_0.47           glue_1.8.0          knitr_1.47         
 [6] pkgconfig_2.0.3     htmltools_0.5.8.1   rmarkdown_2.27      lifecycle_1.0.4     cli_3.6.3          
[11] vctrs_0.6.5         rsconnect_1.2.2     compiler_4.4.2      rstudioapi_0.16.0   tools_4.4.2        
[16] rsthemes_0.4.0.9000 hms_1.1.3           evaluate_0.24.0     yaml_2.3.10         rlang_1.1.4      

Yes I'm a Mac user.

Quarto check output

Quarto 1.6.39
[✓] Checking environment information...
      Quarto cache location: /Users/santiagosotelo/Library/Caches/quarto
[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.4.0: OK
      Dart Sass version 1.70.0: OK
      Deno version 1.46.3: OK
      Typst version 0.11.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.6.39
      Path: /Applications/quarto/bin

[✓] Checking tools....................OK
      TinyTeX: v2023.07.08
      Chromium: (not installed)

[✓] Checking LaTeX....................OK
      Using: TinyTex
      Path: /Users/santiagosotelo/Library/TinyTeX/bin/universal-darwin
      Version: 2023

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
      Version: 3.11.6
      Path: /Users/santiagosotelo/.virtualenvs/r-reticulate/bin/python3
      Jupyter: 5.7.2
      Kernels: python3

[✓] Checking Jupyter engine render....OK

[✓] Checking R installation...........OK
      Version: 4.4.2
      Path: /Library/Frameworks/R.framework/Resources
      LibPaths:
        - /Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/library
      knitr: 1.47
      rmarkdown: 2.27

[✓] Checking Knitr engine render......OK

[mcanouil]

It seems to be unrelated to Quarto CLI and to be an issue with the IDE.

https://github.com/rstudio/rstudio

Be sure to use the latest version available of the IDE.