feat(shared-vault-sync): sync the nested devops-shared-vault subrepo

Detection order is now SHARED_VAULT_DIR, then $PWD, then $PWD/Areas/DevOps
(the nested shared subrepo inside the personal vault). Bump to 0.1.1.

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

plugins/shared-vault-sync/.codex-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "shared-vault-sync",
-  "version": "0.1.0",
+  "version": "0.1.1+codex.20260901101401",
   "description": "Safely pulls the shared vault at interactive session start.",
   "author": {
     "name": "Local developer"