Fix deploy docs build-html failure by installing libuv for R fs dependency

[Copilot]

build-html in the deploy workflow failed while installing rmarkdown because fs could not compile (uv.h missing). This blocks Rmd rendering and prevents docs deployment on main.

• Root cause

  • install.packages("rmarkdown") pulls fs through transitive deps (sass/bslib), and fs requires system libuv headers on ubuntu-latest.

• Workflow change

  • Updated .github/workflows/deploy-ss3-docs.yml to install libuv1-dev before R package installation.

• Patch (minimal)

  - name: Install system dependencies
    run: |
      sudo apt-get update
      sudo apt-get install -y libuv1-dev

[github-actions]

Here are the artifacts from your PR:
textidote_report
SS330_User_Manual.pdf
Please review your changes in the linked artifacts.