KFQUbit – Phase 3 (v2.0): Observational Thresholds and Environmental Regime Transitions Identified by the KFQU Operato

This deposit presents Phase 3 (Version 2.0) of the KFQUbit framework, focusing on the observational implementation of the KFQU operator using real astrophysical data. This phase compares two observational regimes based on different temporal depths of gamma-ray catalogs, corresponding to approximately 8 years and 14 years of Fermi-LAT observations. The analysis applies the KFQU operator to a fixed sample of disk galaxies from the SPARC database and evaluates angular coincidences with sources from the Fermi 4FGL-DR4 catalog. The execution is carried out through the scripts unif_fermi_v2.py and random_control_fermi.py, allowing direct comparison between Phase 3 Version 1 and Version 2.0. The results are not interpreted as detections or causal relations, but as the identification of persistent observational thresholds that remain stable across different integration times and under Monte Carlo random controls. Only a small and consistent subset of galaxies crosses these thresholds as catalog depth increases, indicating a reproducible and non-trivial observational regime. Within the KFQUbit framework, these findings are interpreted as environment-induced transitions between effective energetic regimes of the Fundamental Field, rather than as predictions of a new dynamical theory. Phase 3 does not claim to replace or compete with established physical models, but serves as a controlled observational exploration aligned with the ontological structure defined in the foundational KFQUbit documents. Phase 3 Version 2.0 thus establishes a methodological and observational bridge between the conceptual framework of KFQUbit and future extensions involving deeper catalogs, improved instrumentation, or refined operators.