kvflowcontrol: ensure range_id is printed in logging

[kvoli]

This issue is to audit and ensure that the range_id is included in all relevant (range specific) logs and events.

Jira issue: CRDB-47936

[kvoli]

Looking across relevant (to rac2) kvflowcontrol packages log lines which may want to include the range id explicitly.

pkg/kv/kvserver/kvflowcontrol/rac2

rg "log.*(Info|Event)" pkg/kv/kvserver/kvflowcontrol/rac2

pkg/kv/kvserver/kvflowcontrol/rac2/store_stream.go
324:            log.Infof(context.Background(), "%s", redact.SafeString(bb.String()))
326:            log.Infof(context.Background(), "skipped logging some streams that were blocked")
471:    log.VEventf(ctx, 3, "%v (id=%d) watching stream %v", notify, handle.id, w.tc.stream)
476:            log.VEventf(ctx, 3, "signaling %v non-empty", w.tc.stream)
485:            log.VEventf(ctx, 2, "starting %v send stream token watcher", w.tc.stream)
504:            log.VEventf(ctx, 3, "%v (id=%d) stopped watching stream %v",
571:                    log.VInfof(ctx, 4,

pkg/kv/kvserver/kvflowcontrol/rac2/range_controller_test.go
1609:                           log.Infof(ctx, "stats: %v", stats)

pkg/kv/kvserver/kvflowcontrol/rac2/range_controller.go
442:            MsgAppMode: mode, LogSnapshot: logSnapshot, ReplicasStateInfo: replicaStateInfoMap}
710:            log.VInfof(ctx, 1, "r%v creating range controller", o.RangeID)
753:                    log.VEventf(ctx, 2, "r%v/%v bypassed request (pri=%v)",
781:                    log.VEventf(ctx, 2,
865:                                    log.VEventf(ctx, 2, "r%v/%v canceled request (pri=%v wait-duration=%v)",
876:                                            log.VEventf(ctx, 2,
891:            log.VEventf(ctx, 2, "r%v/%v admitted request (pri=%v wait-duration=%v wait-for-all=%v)",
1565:           log.VInfof(ctx, 1, "r%v setting range leaseholder replica_id=%v", rc.opts.RangeID, replica)
1584:           log.VInfof(ctx, 1, "r%v closing range controller", rc.opts.RangeID)
2274:                   log.VInfof(ctx, 2, "r%v:%v stream %v admit %v returned %s",
2309:           log.VEventf(ctx, 1, "r%v creating send stream %v for replica %v",
2698:           log.VEventf(ctx, 1, "r%v closing send stream %v for replica %v",
3101:           log.VEventf(ctx, 1, "r%v:%v stream %v changing to probe",

pkg/kv/kvserver/kvflowcontrol/rac2/store_stream_test.go
80:     log.Infof(ctx, "creating stream id %d", id)
89:     log.Infof(ctx, "creating stream id %d", id)

pkg/kv/kvserver/kvflowcontrol/rac2/token_tracker.go
90:             log.Infof(ctx, "tracking %v flow control tokens for pri=%s stream=%s log-position=%d/%d",

pkg/kv/kvserver/kvflowcontrol/rac2/token_counter.go
509:                            log.Eventf(ctx, "wait-for-eval: waited until context cancellation")
514:                            log.Eventf(ctx, "wait-for-eval: waited until channel1 refreshed")
519:                            log.Eventf(ctx, "wait-for-eval: waited until channel2 refreshed")
531:                            log.Eventf(ctx, "wait-for-eval: waited until %s tokens available",
645:            log.Infof(ctx, "adjusted %v flow tokens (wc=%v stream=%v delta=%v flag=%v): regular=%v elastic=%v",

pkg/kv/kvserver/kvflowcontrol/replica_rac2

rg "log.*(Info|Event)" pkg/kv/kvserver/kvflowcontrol/replica_rac2

pkg/kv/kvserver/kvflowcontrol/replica_rac2/processor.go
613:    log.VEventf(ctx, 1, "enabled v2 protocol using v1 priority encoding")
978:                            log.Infof(ctx,
995:                            log.Infof(ctx,
1211:                   log.VEventf(ctx, 2, "r%v/%v bypassed request as no RC (pri=%v)",