CI: pin Quarto to 1.9.37 so site_libs match rendered HTML.

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

Author: AliBoloor

.github/workflows/quarto-render.yml

@@ -31,9 +31,14 @@ jobs:
           # Avoids GitHub API rate limits when downloading Quarto / TinyTeX bundles.
           GH_TOKEN: ${{ github.token }}
         with:
-          version: release
+          # Pin so HTML and site_libs hashes stay aligned across runs (avoid mixing
+          # with a different local Quarto when committing docs from a laptop).
+          version: "1.9.37"
           tinytex: true
 
+      - name: Report Quarto version
+        run: quarto --version
+
       - name: Install TeX fonts for syllabus PDF (Linux)
         run: |
           if command -v tlmgr >/dev/null 2>&1; then