fix(training): keep a linked driver until the first server load finishes

A ?driver= link to Training stats was cleared when the page rendered
from the local copy before the server data arrived. The selection now
survives until the first load settles, then the driver opens.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rc-racecore",
-  "version": "1.35.0",
+  "version": "1.35.1",
   "private": true,
   "description": "RC RaceCore live timing and race control with AMMC ingest and SQLite persistence",
   "engines": {