The dependency-free ctypes bridge packs normalized records into the arrays
accepted by PineForge strategy libraries. Providers remain responsible for
ordering and provenance before the handoff.
::: pineforge_data.engine.PfBar
::: pineforge_data.engine.PfTradeTick
::: pineforge_data.engine.pack_bars
::: pineforge_data.engine.pack_trade_ticks
::: pineforge_data.engine.EngineStreamSink
::: pineforge_data.errors.EngineStreamError