The plans verb: what the last merges produced and where each stands (hq ADR 0162)

The mesh's seat answers plans — the recent plans with their tier, what each waits for and since when,
or one plan whole given its id — so the console reads a merge's progress where it reads everything
else, instead of a person reading the daemon's log.

internal/catalogue/verbs.go

@@ -91,6 +91,9 @@ var ControllerVerbs = []Verb{
 			"module": "one module's name; every module when absent",
 			"log":    "a build's id (as `builds` lists it): print what the build machine said, line by line",
 		}, nil)},
+	{Name: "plans", Description: "What the last merges produced and where each stands (novox/hq ADR 0162): " +
+		"the tiers, the tier a plan is at, what it waits for and since when; one plan whole, given its id.",
+		Input: schema(map[string]string{"id": "a plan's id (as `plans` lists them): that plan, tier by tier"}, nil)},
 	{Name: "plan", Description: "What one machine would run, and why: the declaration the mesh would send it.",
 		Input: schema(map[string]string{"node": "the machine's name"}, []string{"node"})},
 	{Name: "assign", Description: "Put a module on a machine. Refused with the mesh's own words when it cannot resolve there.",