claude-code: tips is a preference, set in one call like any module's

Turning Claude Code's tips off meant a change to the trusted managed_settings layer, proposed for the operator's approval. Tips decide how a session looks, not what it may do, so the module declares `tips` as a preference in an untrusted file of its own and renders it as spinnerTipsEnabled; the controller's settings verb sets it for the mesh or a node, with its history.

modules/claude-code/module.json

@@ -1,6 +1,13 @@
 {
   "module": "claude-code",
   "version": "1",
+  "settings": {
+    "tips": {
+      "kind": "preference",
+      "default": true,
+      "why": "Claude Code shows a tip while it works; false turns tips off in every session on the machine, written as spinnerTipsEnabled in its managed settings"
+    }
+  },
   "slug": "agent",
   "capabilities": [
     "package-manager"
@@ -146,6 +153,15 @@
       "owner": "${machine:account}",
       "merge": "json",
       "content": "{\n  \"role\": \"\",\n  \"mcp_servers\": {},\n  \"managed_settings\": {},\n  \"instructions\": {},\n  \"output_styles\": {},\n  \"skills\": {},\n  \"commands\": {},\n  \"agents\": {}\n}\n"
+    },
+    {
+      "id": "preferences",
+      "trusted": false,
+      "type": "file",
+      "path": "${dir:state}/preferences.json",
+      "mode": "0600",
+      "owner": "${machine:account}",
+      "content": "{\n  \"tips\": ${setting:tips}\n}\n"
     }
   ],
   "shell": [