A Morris–Thorne–Type Conformally Flat Traversable Wormhole with Decoupled Exoticity in Scalar–Tensor Gravity Supported by Born–Infeld Electrodynamics and a Field-Responsive Non-Exotic Thin-Shell Matter Layer, Admitting a Full Type IIB Flux Compactification Uplift

We present a fully self-consistent, curvature-regular, static and traversable wormhole solution obtained from first principles by combining three physically motivated sectors: a Brans–Dicke scalar field, a thin anisotropic shell, and a nonlinear Born–Infeld electromagnetic configuration. The geometry is generated by a controlled conformal deformation with a human-scale throat radius R0 = 2m, chosen to maximise physical transparency while avoiding any form of extreme fine-tuning. The parameters have been moderately optimised to ensure numerical stability, yet deliberately kept away from machine-precision cancellation, so that all observed equilibrium features arise from genuine sector interactions rather than artificial numerical artefacts. A central result is that none of the three components individually satisfies the Morris–Thorne requirements for supporting a wormhole throat. However, their superposed stress–energy exhibits a natural and robust near-equilibrium in which the total null energy condition remains marginally satisfied, NECtotal ≈ 0, while each constituent sector (Born–Infeld, shell, scalar) exhibits controlled NEC deviations of opposite sign. This provides a concrete example of a composite mechanism where nonlinear electrodynamics, anisotropic surface stresses, and scalar gradients combine to yield an admissible wormhole-supporting configuration without invoking exotic matter in the traditional sense. The resulting spacetime is horizonless, free of curvaturesingularities, ADM-finite, and exhibits a well-behaved embedding profile with a clean flare-out condition. Wefurther show that the four-dimensional solution admits a consistent ten-dimensional uplift within a flux-supported compactification framework. The external components of the ten-dimensional Einstein tensor precisely reproduce the four-dimensional geometry, while the internal directions naturally accommodate the residual flux, scalar moduli gradients, and anisotropic contributions. The uplift demonstrates that the effective four-dimensional composite stress–energy is compatible with a higher-dimensional origin, providing a string-theoretically motivated setting in which the wormhole can exist without violating fundamental consistency conditions. Born–Infeld vortex configurations are included only in an illustrative capacity to clarify how nonlinear electromagnetic excitations can generate the anisotropic membrane stresses required for the composite mechanism; detailed engineering of laboratory devices is deliberately excluded as beyond the scope of the present work. Taken together, the results constitute a fully coherent framework in which a smooth, traversable, and physically interpretable wormhole arises from a realistic multi-sector interaction, offering a rare and explicit example of a higher-dimensional, non-exotic, equilibriumsupported wormhole geometry.