Add Cloudflare Pages deploy script and config

deploy.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+set -euo pipefail
+cd "$(dirname "$0")"
+
+# wrangler login caches an OAuth token under ~/.config/.wrangler; re-running
+# login when already authenticated would pointlessly re-open the browser.
+if ! pnpm exec wrangler whoami 2>/dev/null | grep -qi "logged in"; then
+  echo "Not logged in to Cloudflare — opening browser for OAuth login..."
+  pnpm exec wrangler login
+fi
+
+echo "Building..."
+pnpm build
+
+echo "Deploying dist/ to Cloudflare Pages..."
+pnpm exec wrangler pages deploy