Let a tools bundle declare its own bus account and what it may remove, so the bus tools remove the controller's dead-letter consumer and the node-engine's acts on a declared account with no idle service (issue 1952 S5, ADR 0564 Limits 4)

go/buscompose/users.go

@@ -105,6 +105,9 @@ type ProcessPrincipal struct {
 	Emits []string
 	// Queues are the module's own work-queue streams this process is the one consumer of.
 	Queues []QueueOwner
+	// Removes are what its account may remove from the bus, as its bus declares them (catalogue.BusRemovals; novox/hq
+	// ADR 0564 Limits 4): a tools bundle's account, whose whole authority is then BusRemovalGrants.
+	Removes []string
 	// State is the module's own state, by local name, this process reads and writes.
 	State []string
 	// Asks says whether this process reads the records of its module's own asks (novox/hq ADR 0259 §3), on
@@ -204,7 +207,7 @@ func Users(r Records) ([]Principal, error) {
 				out = append(out, Principal{
 					Kind: KindProcess, Node: node, Module: d.Module, Process: pr.Process,
 					Emits: pr.Emits, Queues: pr.Queues, State: pr.State, Uses: d.Uses, Asks: pr.Asks,
-					Invokes: pr.Invokes, RemovesFromTheBus: d.SnapshotsTheBus && pr.Process == BusToolsProcess,
+					Invokes: pr.Invokes, Removes: pr.Removes,
 				})
 			}
 			if runtimeHere && d.Module == RuntimeModule {