NEW DISCOVERY: The Grant Projection Theorem: Complete Generation of 3D Polyhedral Structure from 2D Harmonic Right Triangles Including Analysis of the 31 Uniform Polyhedra, Harmonic Solids, Grant Polytopes, and the Inner 120-Cell (see IG Profile for Paper Link) Key Conclusions (Short Form) • Three-dimensional polyhedral structure is generated, not assumed, from a single right triangle. • Euler’s formula emerges automatically as a consequence, not an axiom. • All known convex uniform polyhedra fo