QMS Platform: A Quantum Measurement Observability and Reconstruction-Assurance Framework with Initial Validation

QMS Platform is a quantum measurement observability and reconstruction-assurance framework developed to assess whether conclusions drawn from quantum measurement data are supported by the available measurement configuration and reconstruction process. Initial validation is performed using two-qubit photonic tomography. The work evaluates measurement-context normalization, linear state reconstruction, controlled count and background degradation, physical-state projection, maximum-likelihood reconstruction, measurement-context criticality, state-dependent observability, null-space information loss, random-state validation, and the decomposition of structural observability loss from noise propagation. The results establish an initial computational validation baseline while explicitly distinguishing current evidence from broader claims of detector or hardware generality.