CLDR-19231 site: also, backport from CLDR-19211

Partial cherry-pick from these commits to not cause cloudflare errors:

- f4eb204
- 04c17fe

Author: srl295

.github/workflows/site.yml

@@ -34,12 +34,10 @@ jobs:
       with:
         ruby-version: 3.2
         bundler-cache: true
-    - name: Setup Jekyll
-      run: 'gem install bundler jekyll kramdown-parser-gfm webrick'
-    - name: Setup assets
-      run: 'cd docs/site/assets && npm ci && npm run build'
-    - name: Build cldr.pages.dev
-      run: 'cd docs/site && jekyll build'
+    - name: Build Site
+      run: 'sh tools/scripts/web/build-site.sh'
+    - name: 'Remove wrangler.jsonc for now (this is the OLD pages build)'
+      run: 'rm -f wrangler.jsonc'
     - name: Pre-install Wrangler
       if: (github.event_name == 'push') || (github.event.pull_request.head.repo.full_name == 'unicode-org/cldr')
       run: npm i -g wrangler@3.x

tools/scripts/web/build-site.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+set -x
+
+gem install bundler jekyll kramdown-parser-gfm webrick && \
+cd docs/site/assets && \
+npm ci && \
+npm run build && \
+cd .. &&  \
+jekyll build || exit 1
+
+echo 'Output in ./_site'

wrangler.jsonc

@@ -0,0 +1,11 @@
+{
+    "name": "cldr-next",
+    "$schema": "https://unpkg.com/wrangler/config-schema.json",
+    "compatibility_date": "2026-01-20",
+    "assets": {
+        "directory": "./_site/",
+        "not_found_handling": "404-page"
+    },
+    "preview_urls": true,
+    "workers_dev": true
+}