fix: use Global API Key for wrangler deploy (KV binding requires it)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ferr079

.github/workflows/deploy.yml

@@ -25,4 +25,5 @@ jobs:
 
       - run: npx wrangler deploy
         env:
-          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          CLOUDFLARE_API_KEY: ${{ secrets.CLOUDFLARE_API_KEY }}
+          CLOUDFLARE_EMAIL: ${{ secrets.CLOUDFLARE_EMAIL }}