chore: bump version to 1.7.116-alpha + changelog/What's New

Bundles all post-115 fixes into an OTA release: boot READY-before-recovery
+ Restart=always (no more 'server starting up'), and the app-install
daemon-kill fix (v6 relay only bridges live app ports; port-cleanup
excludes our own PID).

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

neode-ui/package.json

@@ -1,7 +1,7 @@
 {
   "name": "neode-ui",
   "private": true,
-  "version": "1.7.115-alpha",
+  "version": "1.7.116-alpha",
   "type": "module",
   "scripts": {
     "start": "./start-dev.sh",