Bootstrap FSP output and timestamps from one source snapshot,
validate the history schema, and compare absolute SHM bounds.
Subscribe before bootstrap, replay history revisions, filter
foreign sampler notices, and append each destination step once.
Close replaced generators before signaling completion.
Use declared `Flume` sample periods so market-closure gaps cannot
be mistaken for the realtime cadence. Cover bounds, snapshot
isolation, backfill routing, sample steps, and targeted redraws.
(this commit msg was generated in some part by `codex` using
`gpt-6` (`openai`))
Gud Boi
07d8cf5a3d