Every module follows the assigner's new places: the contracts' go/ path, mesh-wants in the delivery contracts, the state and tool assignments (issue 1966)

The legacy key form placement.<node> is gone from the client, so the readers and their fixtures lose it. The check noplacement
now also refuses the assigner's retired names in a manifest.

Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i

modules/claude-code/module.json

@@ -28,12 +28,12 @@
     "seat:mesh-catalog.seat-definitions",
     "mesh-delivery-indexer.indexer_read_modules",
     "mesh-delivery-indexer.indexer_read_manifests",
-    "mesh-delivery-assigner.assigner_read_placement"
+    "mesh-delivery-assigner.assigner_read_assignments"
   ],
   "consumes": [
     "mesh-delivery-indexer.views.modules",
     "mesh-delivery-indexer.views.manifests",
-    "mesh-delivery-assigner.views.placement",
+    "mesh-delivery-assigner.views.assignments",
     "mesh-catalog.seat-definition-changed",
     "mesh-catalog.seat-definition-removed"
   ],