v1.2.0: advisor is per session and off by default (new and existing sessions); old global setting ignored

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@local/omp-advisor",
-  "version": "1.1.1",
+  "version": "1.2.0",
   "description": "oh-my-pi style advisor for DSH: a second model reviews every agent step and injects notes, concerns or blockers.",
   "private": true,
   "type": "module",