The bus module takes and restores a restore point of a module's kept data, beside the live data (milestone G, W14.2)

Seat verbs snapshot-kept, restore-kept, discard-aside and aside, handed to the keeper; state kept; tool nats_kept.

Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ

modules/nats/module.json

@@ -32,7 +32,11 @@
         "list",
         "show",
         "check",
-        "orphans"
+        "orphans",
+        "aside",
+        "snapshot-kept",
+        "restore-kept",
+        "discard-aside"
       ]
     }
   ],
@@ -98,6 +102,10 @@
       "history": 1,
       "ttl-seconds": 86400,
       "read-only": true
+    },
+    {
+      "name": "kept",
+      "history": 1
     }
   ],
   "listens": [
@@ -133,7 +141,8 @@
     "nats_drop",
     "nats_keeper_health",
     "nats_first_view_again",
-    "nats_requests"
+    "nats_requests",
+    "nats_kept"
   ],
   "guards": [
     8222
@@ -257,7 +266,8 @@
         "state": [
           "asked",
           "requests",
-          "spent"
+          "spent",
+          "kept"
         ],
         "asks": true,
         "keeps": true,