Time Field Theory X: Geometric Unification of Spacetime and Classical Electromagnetism

As the tenth paper in the Time Field Theory (TFT) series, this work strictly adheres to the complete axiom system, physical quantity definitions, and mathematical framework established in Papers I–IX. Taking the axiom of total flow velocity conservation as the core first principle, this paper maintains full theoretical consistency without introducing new independent axioms or implicit hypotheses. Based on the spacetime geometric properties of the time field, we rigorously derive the complete set of Maxwell’s equations in both differential and integral forms through standardized mathematical deduction and unified physical definitions. The spacetime geometric origin of fundamental electromagnetic constants is clarified, and the physical nature of electric charge polarity and gravitational monopole structure is interpreted from the perspective of spacetime topology. This work achieves the fundamental unification of Time Field Theory and classical electromagnetism, constructs a fully self-consistent and logically closed theoretical framework, and further enhances the completeness and universality of the time field theoretical system.