Bitemporal CIEDE2000 Calibration: Event-Sourced PostgreSQL Queues and Low-Latency SSE Telemetry for Shadow's 24fps Multimodal Synthesis Core When we started rebuilding Shadow's media pipeline last year, we hit a wall with colour drift between synthesis passes. Our core generates multimodal frames at 24fps, but every subsystem had its own notion of what "colour" meant, and drift compounds across a 90-minute reel. We needed a calibration substrate that survived frame boundaries, queue backpres...