Add deploy script, eval refresh script and Go-priced eval data

- scripts/deploy.sh: manual Cloudflare Pages deploy (same steps as CI)
- scripts/refresh-evals.mjs: re-scrape Artificial Analysis + OpenCode Data into evals.js
- evals.js now carries OpenCode Go list prices; Hy4 and LongCat 2.5 left empty
  rather than borrowing a neighbouring model's numbers
- workflow creates the Pages project idempotently

package.json

@@ -6,7 +6,8 @@
   "type": "module",
   "scripts": {
     "dev": "wrangler pages dev site --port 8788",
-    "deploy": "wrangler pages deploy site --project-name opencodegoevals --branch main",
+    "deploy": "./scripts/deploy.sh",
+    "deploy:pages": "wrangler pages deploy site --project-name opencodogoevals --branch main",
     "project:create": "wrangler pages project create opencodogoevals"
   },
   "devDependencies": {