seat: a push to a named machine waits for the machine's answer, so its call says how it went (issue 629)

The seat ran `push <node> --wait 0`, so a push's call ended at "sent" and nobody learned whether the machine applied it. The caller is answered before a push starts (answersFirst, issue 265), so waiting holds nobody: the call now waits up to two minutes for the machine's own report and keeps it, applied, refused with the machine's reason, or each failed resource with its error.

cmd/mesh-controller/seatverbs.go

@@ -13,6 +13,7 @@ import (
 	"slices"
 	"sort"
 	"strings"
+	"time"
 
 	"github.com/novox/mesh-controller/internal/broker"
 	"github.com/novox/mesh-controller/internal/catalogue"
@@ -519,9 +520,11 @@ func (a *verbArguments) commandLine() ([]string, error) {
 		}
 		return []string{"unpin", str("node"), str("provision")}, nil
 	case "push":
-		// Sent and not waited for: the asker reads `status` for what the machine did, which is
-		// what a person at a shell does too. A tool call that blocked for a push's whole apply would
-		// time out on every machine that takes a minute, and say nothing about the ones that did not.
+		// A push to a named machine waits for that machine's own answer, so the call's record says
+		// how it went: applied, refused with the machine's reason, or which resources failed and why
+		// (novox/hq issue 629). The caller is answered before the push starts (answersFirst), so the
+		// wait holds nobody; it is what `calls` then shows. A sweep (--behind) still does not wait: it
+		// sends many machines, and the slowest would hold back what is said of the others.
 		// A push through the seat is a push by hand, and says why (novox/hq to-be 45 §7).
 		if err := need("why"); err != nil {
 			return nil, fmt.Errorf("%w: a push by hand is a repair, recorded in the hand-act log with why", err)
@@ -534,7 +537,7 @@ func (a *verbArguments) commandLine() ([]string, error) {
 			// behind is not read here: given with a machine, it is refused as passed over — naming
 			// a machine and asking for every machine behind are two requests, and guessing one
 			// would push a machine nobody named, or not push one somebody did.
-			argv := []string{"push", n, "--wait", "0"}
+			argv := []string{"push", n, "--wait", seatPushWait.String()}
 			// A running module's data moving is sent only when said, per module (novox/hq ADR 0217).
 			if m := str("move"); m != "" {
 				argv = append(argv, "--move", m)
@@ -1328,6 +1331,11 @@ var inProcess = map[string]bool{"tools": true, "calls": true, "doctor": true,
 	// 0259 §8): the router asks it before an approval.
 	"root-free": true}
 
+// seatPushWait is how long a push through the seat waits for the machine it names to report applying what it
+// was sent (novox/hq issue 629): inside the call's bound with room for the send itself, which took two minutes
+// on 2026-10-13 with four pushes at once.
+const seatPushWait = 2 * time.Minute
+
 // answersFirst is a command line whose caller is answered before it runs: a push, by its verb or
 // through `command`. A push sends the machine holding the bus first when its user list changed, the
 // broker reloads, and a reload forgets every answer the bus was about to permit — so an answer