build: migrate from npm to Bun

.github/workflows/zola.yml

@@ -17,13 +17,9 @@ jobs:
       - name: Checkout main
         uses: actions/checkout@v6
 
-      - name: Setup Node.js
-        uses: actions/setup-node@v6
-        with:
-          node-version: 24
-
-      - name: Install dependencies
-        run: npm install
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+        run: bun install
 
       - name: Install just and Zola
         uses: taiki-e/install-action@v2

README.md

@@ -15,8 +15,7 @@ code. The website is built using the Rust-powered static site generator,
     components library built with Tailwind CSS
 -   **[Quarto](https://quarto.org/)** — currently used to execute code chunks 
     and render to commonmark, though this is likely to change
--   **[Node.js](https://nodejs.org/en)** — `npm` and `npx` are also used to 
-    manage JS dependencies
+-   **[Bun](https://bun.com/)** — javascript runtime and package manager
 -   **[iconify](https://iconify.design/docs/usage/css/tailwind/tailwind4/)** — a 
     Tailwind extension for icons (currently limited to fa7-brands, lucide, and 
     mdi icons)
@@ -43,7 +42,8 @@ The build pipeline:
 ├── templates/         # Zola HTML templates + shortcodes and macros
 ├── css/               # Tailwind input
 ├── static/            # Compiled CSS, JS, assets
-├── package.json       # Node.js project manifest
+├── bun.lock           # Pinned dependency versions
+├── package.json       # Bun project manifest
 ├── packages/          # Example R packages built with extendr
 └── scripts/           # R scripts
 ```
@@ -56,11 +56,6 @@ In addition to the stack software listed above, you will need R installed and
 the most recent release version of the rextendr package. The `just` command line 
 runner will also be very beneficial to you.
 
--   **[just](https://github.com/casey/just)** v1.55.0 or higher
--   **Node.js** v24.15.0 or higher
--   **Quarto** 
--   **Zola** v0.22.1 or higher
-
 **Installation**
 
 ```
@@ -89,7 +84,6 @@ Run `just` without arguments to list available recipes.
 ```
 Available recipes:
     build             # Compile Tailwind css, then build the site with Zola
-    build-tailwind    # Generate Tailwind static/style.css from css/style.css
     check             # Try to build site without rendering (checks links)
     dev               # Run Tailwind watch and Zola live serve in parallel
     install           # Install Node.js dependencies
@@ -99,4 +93,5 @@ Available recipes:
     render-page path  # Render a documentation page at content/{{path}}.qmd
     render-post title # Render a blog post at content/blog/{{title}}/index.qmd
     reset             # Clear public directory generated by Zola
+    tailwind-build    # Generate Tailwind static/style.css from css/style.css
 ```