The grants part takes a first view of every binding from the seat mesh-broker's list

At each start and on grants_first_view_again with state bindings, the part asks
list, writes the bindings the answer carries that it holds none of or another of,
keeps and raises binding-unlisted for those the answer omits, never writes over
an event heard since the ask, holds the seat's events until the answer or the
bound, and raises first-view-unanswered naming mesh-broker and list past two
minutes while composing as before. grants_first_views shows the first view
beside the others. Cases are rows and subtests of the existing tests.

Builds: design 25 bindings-first-view §1, §3, §4, §5, §6, §7, §8 (hq d0760629, PR 543)

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

modules/mesh-grants/module.json

@@ -40,7 +40,8 @@
     "mesh-delivery-indexer.modules",
     "mesh-delivery-indexer.verdicts",
     "seat:mesh-catalog.seat-definitions",
-    "seat:mesh-hand-acts.hand-act"
+    "seat:mesh-hand-acts.hand-act",
+    "seat:mesh-broker.list"
   ],
   "emits": [
     "asserted",