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.
MHSanaei