G-catalog-B 7: a transfer dropped by hand is recorded through mesh-hand-acts first

registry_incoming, npm_incoming and go_incoming dropped a transfer by hand with only a log line. Each
drop now records its hand act through the seat mesh-hand-acts before anything goes, as nats_requests
does; an act not recorded leaves the transfer open. distribution's manifest invokes the seat.

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig

modules/distribution/module.json

@@ -55,7 +55,8 @@
     "distribution.registry_callers",
     "mesh-delivery-builder.builder_versions",
     "mesh-delivery-view.node_haves",
-    "seat:node-engine.manifest-reads"
+    "seat:node-engine.manifest-reads",
+    "seat:mesh-hand-acts.hand-act"
   ],
   "consumes": [
     "mesh-delivery-view.delivered",