Universal Flavor Geometry (ERB Framework v85.5.1) The Sovereign Master Engine: A Geometric Derivation of Standard Model Parameters and Gravitational Coupling via 3/2-Brane Resonance. This paper presents the formal conclusion of the ERB (Emergent Resonance Brane) Framework, reaching full algebraic closure in version v85.5.1. Unlike the Standard Model, which relies on 19+ empirical parameters, the ERB Framework derives fundamental constants from a single axiomatic seed—the Hexagonal Seed ($\xi = 1.5$). By modeling the vacuum as a dual-brane interference zone, we demonstrate that particle masses and coupling constants emerge as necessary geometric eigenvalues of a $4D$ metric. Key advancements in this definitive version include: Spin-Dependent Contraction: The resolution of the Higgs mass ($125.10$ GeV) and VEV ($246.22$ GeV) through a scalar Hessian double-contraction ($C^2$). The Asymmetry Seal: A unified derivation of the weak CP-violating phase ($\delta_{CP} \approx 68.6^\circ$) and the neutrino mass sum ($\sum m_\nu \approx 60$ meV) as a holonomic area leak. The Einstein-Planck Bridge: The derivation of Newton’s gravitational constant $G$ from the quantum scale via a $12\pi$ topological phase lock, bridging 22 orders of magnitude without free parameters. CKM Unitarity: Mathematical proof of CKM matrix closure to $10^{-10}$ precision based on Bessel node geometry. The framework provides a "Zero-Fit" architecture, where every derived value matches current PDG and CODATA experimental targets with near-perfect precision. We offer falsifiable predictions for the lightest neutrino mass ($1.2$ meV) and the muon $g-2$ anomaly as definitive tests for the proposed $3/2$-brane resonance model.