push: the wait is the call's or the controller's setting push-wait, never a length in the code (issue 629)

The operator's rule: a wait is never hard-coded, at most a default is configured. The push verb takes `wait`; without it the controller's setting `push-wait` (module default 2m) applies; a setting that cannot be read waits for nothing, as a push did before, and says so.

internal/catalogue/verbs.go

@@ -217,14 +217,16 @@ var ControllerVerbs = []Verb{
 		Input: schema(map[string]string{"node": "the machine's name", "provision": "the provision"}, []string{"node", "provision"})},
 	{Name: "push", Description: "Send one machine everything it should be. With no machine named it is a push of the " +
 		"WHOLE mesh — every machine that is behind — and the answer says so first; behind says that outright. " +
-		"Answers at once that it is running, with a call id: `calls` with that id says what it sent " +
-		"(a push can reload the bus, which then refuses any answer still to come). A push by hand is a repair, " +
+		"Answers at once that it is running, with a call id: `calls` with that id says what it sent and, for a " +
+		"machine named, how that machine applied it — applied, refused with its reason, or each failed resource — " +
+		"once it reports within wait (a push can reload the bus, which then refuses any answer still to come). A push by hand is a repair, " +
 		"and says why: recorded in the hand-act log (novox/hq to-be 45 §7). A machine whose push would give a " +
 		"running module's data another directory is held and named, the others sent (novox/hq ADR 0217): read " +
 		"`plan` with diff, and name the machine with move to send it.",
 		Input: schema(map[string]string{
 			"node":   "the machine's name; without it, every machine that is behind",
 			"move":   "with node: the modules whose data may move with this push, comma-separated (optional)",
+			"wait":   "with node: how long the call waits for the machine to report how it applied what it was sent, as \"90s\" or \"2m\"; \"0\" waits for nothing; without it, the controller's setting push-wait (optional)",
 			"behind": "\"true\": every machine that is behind, the whole mesh — the same as naming none, said outright; not with node",
 			"why":    "why this is pushed by hand: recorded in the hand-act log",
 			"cause":  "the cause in a word, or a condition's kind — the word a second push for the same reason uses (optional)",