Recursive Soil Bearing Architecture (RSBA) Derived from the SEXA Recursive Energy Functional (SREF): Synthetic Landmass Stabilization through Boundary-Induced Stress Decoupling and Negentropic Boundary-Field Reactors, with Extensions to 2880-Dimensional SEXA Payload Interception, Keplerian Quaternion Recursive Logic Rotation, and Einstein-Overclock Exciternion Lift | Synapse