mesh-config and mesh-conditions without the controller's lease

The controller ended by its unassignment, so its lease is never handed and
both stayed in their controller-era branch (issue 1126, A5). mesh-config no
longer trusts the controller's relay: a trusted value needs the operator's
Approve. The condition keeper carries nothing from the controller, clears
once at start what it carried, and refuses take-over as the one source.
Both drop their manifest read of mesh-controller.lease.

Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL

modules/mesh-config/module.json

@@ -37,8 +37,7 @@
     "mesh-delivery-indexer.modules",
     "mesh-delivery-indexer.manifests",
     "mesh-delivery-indexer.predefined",
-    "mesh-delivery-indexer.config-candidates",
-    "mesh-controller.lease"
+    "mesh-delivery-indexer.config-candidates"
   ],
   "tools": [
     "config_compare",