Calibrate the peripheral energy model against measured hardware

[WaffleBits]

Problem

The current sensitivity analysis is analytical. ADC, DAC, control, calibration, interconnect, and memory parameters are explicit, but they are not calibrated against a physical implementation.

Acceptance criteria

• Ingest measured FPGA latency and wall-power samples with workload metadata.
• Fit or select cost-model parameters without modifying benchmark outputs by hand.
• Publish prediction-versus-measurement error for at least three matrix shapes.
• Preserve optimistic, nominal, and conservative scenarios.
• Document where the analytical model remains structurally wrong.