test: lower warn threshold to demo warning for review

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: bkbooth

packages/audience/pixel/bundlebudget.json

@@ -2,8 +2,8 @@
   "budgets": [
     {
       "file": "dist/imtbl.js",
-      "maxSizeGzip": 1000,
-      "warnSizeGzip": 8192
+      "maxSizeGzip": 10240,
+      "warnSizeGzip": 3000
     }
   ]
 }