Opt cloudflare/wrangler-action into Node.js 24 early

cloudflare/wrangler-action@v3 still declares node20 as its runtime and
Cloudflare has not yet released a node24-compatible version.  Setting
FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true on the publish-docs jobs opts in
to the Node.js 24 runtime now, which suppresses the deprecation warning
and avoids a surprise breakage when GitHub enforces node24 by default on
June 2, 2026.

Assisted-by: Claude Code:claude-sonnet-4-6

Author: dahlia

.github/workflows/main.yaml

@@ -486,6 +486,8 @@ jobs:
       pages: write
       deployments: write
       statuses: write
+    env:
+      FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: 'true'
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}

.github/workflows/publish-pr.yaml

@@ -263,6 +263,8 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       contents: read
+    env:
+      FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: 'true'
     outputs:
       deployment_url: ${{ steps.wrangler.outputs.deployment-url }}
     steps: