C1c-4: the tool runner sends a bundle's chunked seat answer in chunks, and a node's chunked verb is asked of the node

A seat verb whose definition says chunks, served by a bundle that answers the whole file as the member `file`, is sent by the
runner with buscalls.SeatChunks.Send and answered with the chunk count (Conn.AnswerChunked, called from serveSeats). A chunked verb
asked of one machine (`@<node>`) is received in chunks as the verb is.

Builds: design 47 G A-257, A-249, A-254, §681

Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h

node-tools/internal/runtime/chunked_test.go

@@ -7,7 +7,7 @@ import (
 )
 
 // Design 47 G A-249: a bundle's seat call is received by the runner in chunks only for a verb whose definition says `chunks`,
-// of no one machine.
+// of any machine: a verb a node holds is asked of the node that ran the ask (A-254).
 func TestOnlyAChunkedSeatVerbIsAskedInChunks(t *testing.T) {
 	c := &consumers{definitions: func() map[string]seatdef.Definition {
 		return map[string]seatdef.Definition{"mesh-catalog": {Verbs: []seatdef.Verb{{Name: "input", Chunks: true}, {Name: "entry"}}}}
@@ -15,7 +15,8 @@ func TestOnlyAChunkedSeatVerbIsAskedInChunks(t *testing.T) {
 	for key, want := range map[string]bool{
 		"seat:mesh-catalog.input":       true,
 		"seat:mesh-catalog.entry":       false,
-		"seat:mesh-catalog.input@ace":   false,
+		"seat:mesh-catalog.input@ace":   true,
+		"seat:mesh-catalog.entry@ace":   false,
 		"seat:mesh-unread.input":        false,
 		"mesh-delivery-indexer.indexer": false,
 	} {