chore: exit prerelease mode for 1.0.1 release

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: kmelve

.changeset/pre.json

@@ -1,5 +1,5 @@
 {
-  "mode": "pre",
+  "mode": "exit",
   "tag": "beta",
   "initialVersions": {
     "boxfix": "1.0.0"