chore: bump to 1.7.124-alpha ahead of the release run

Pre-bumped so the release gate compiles the test profile at the final
version — create-release bumps after the gate, so the gate would otherwise
run on the old version and the bump would invalidate the cache, timing out
cargo-test-weekly on the compile rather than the tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

neode-ui/package.json

@@ -1,7 +1,7 @@
 {
   "name": "neode-ui",
   "private": true,
-  "version": "1.7.123-alpha",
+  "version": "1.7.124-alpha",
   "type": "module",
   "scripts": {
     "start": "./start-dev.sh",