fix(inbound): defer a local MTProto inbound edit's sidecar push until after commit

UpdateInbound applied a local MTProto inbound change by calling the runtime
UpdateInbound (which stops/starts the mtg sidecar or talks to it) from inside
runSerializedTx. That runs process and network I/O on the single traffic-writer
goroutine while a DB transaction is open, so a slow sidecar stalls traffic
accounting and every concurrent client mutation, and a later step failing the
transaction leaves the sidecar ahead of the rolled-back row. Move the push into
the post-commit hook, matching the xray branch. Adds a SetLocalRuntimeOverride
test seam mirroring the existing node override so the deferral is regression
tested.

internal/web/service/inbound.go

@@ -1303,13 +1303,16 @@ func (s *InboundService) UpdateInbound(inbound *model.Inbound) (*model.Inbound,
 						pushable = false
 					}
 				}
+				newProtocolIsMtproto := oldInbound.Protocol == model.MTProto
 				if pushable {
-					if err2 := rt.UpdateInbound(context.Background(), &oldSnapshot, payload); err2 == nil {
-						logger.Debug("Updated inbound applied on", rt.Name(), ":", oldInbound.Tag)
-					} else {
-						logger.Debug("Unable to update inbound on", rt.Name(), ":", err2)
-						if oldInbound.Protocol != model.MTProto {
-							needRestart = true
+					postCommitApply = func() {
+						if err2 := rt.UpdateInbound(context.Background(), &oldSnapshot, payload); err2 == nil {
+							logger.Debug("Updated inbound applied on", rt.Name(), ":", oldInbound.Tag)
+						} else {
+							logger.Debug("Unable to update inbound on", rt.Name(), ":", err2)
+							if !newProtocolIsMtproto {
+								needRestart = true
+							}
 						}
 					}
 				}