B5g3-5: the tool runner receives a chunked seat answer and hands the bundle the whole

Builds: design 47 G §681, §712, A-237, A-249, A-139

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

node-tools/internal/runtime/gate.go

@@ -2,6 +2,7 @@ package runtime
 
 import (
 	"fmt"
+	"strings"
 
 	"git.novox.be/novox/mesh-sdk/go/approval"
 	"git.novox.be/novox/mesh-sdk/go/seatdef"
@@ -86,3 +87,21 @@ func (r *runner) unservedMarks(module string, regs []launch.Registration) []stri
 	}
 	return r.events.gate.Unserved(module, r.fingerprintOf(module), registered)
 }
+
+// chunked says whether key names a seat's verb whose definition says `chunks` (design 47 G A-249): its answer is received in
+// chunks by the runner, whose call hands the bundle the whole.
+func (c *consumers) chunked(key string) bool {
+	if c.definitions == nil || !strings.HasPrefix(key, "seat:") {
+		return false
+	}
+	seat, verb, ok := strings.Cut(strings.TrimPrefix(key, "seat:"), ".")
+	if !ok || strings.Contains(verb, "@") {
+		return false
+	}
+	for _, v := range c.definitions()[seat].Verbs {
+		if v.Name == verb {
+			return v.Chunks
+		}
+	}
+	return false
+}