M&V firewall FMEA and a pre-registration record (supplementary to the platform paper)

De-identified deposit versions of two project-internal documents cited as evidence in the paper 'A measurement-and-verification-firewalled living lab in an occupied single-family home' (arXiv, eess.SY). (1) The failure-mode-and-effects analysis of the three-plane (Control / Analytics / Research) measurement-and-verification firewall: the six cross-plane corruption paths (CF1-CF6) and the guards that close them. (2) A pre-registered analysis plan for a 168-hour unoccupied free-float thermal-identification experiment: eight falsifiable hypotheses with frozen decision thresholds, frozen (version-control-timestamped) before data collection. Both are de-identified derivatives -- house, zone, device, and vendor names generalised; architecture, guard logic, hypotheses, thresholds, and method preserved faithfully. No personal or household data. Controller source code and raw data excluded. CC-BY-4.0.