Flow Brane Theory v2: A Holographic Framework for Three-Flavor Neutrino Oscillations with a Discrete Bra-Ket Dimension

We propose Flow Brane Theory v2, a 4-layer holographic framework with a discrete bra-ket dimension that naturally reproduces three-flavor neutrino oscillations, calculates sin^2(theta_13) ≈ 0.022, and predicts new signals for DUNE, Hyper-Kamiokande, and JUNO. The model uses brane-localized fields, a holographic metric, and discrete transitions between |ket⟩ and ⟨bra| states to generate mass differences and mixing angles without fine-tuning. We provide analytical derivations, numerical fits to current data, and explicit experimental predictions testable in the next 5 years.