Plasma Pressure Theory (PPT) 3.0: The Unified Scaling Update

This update formalizes Plasma Pressure Theory (PPT) Version 3.0: the transition from an empirical pinning constant (Cp ≈ 6.85 × 10⁻¹² m³ kg⁻¹ s⁻²) in PPT 2.3 to a fundamental derivation rooted strictly in the universal medium density (ρ_univ = 2.3 × 10¹⁷ kg/m³). By grounding Cp in nuclear-scale geometry, PPT 3.0 establishes a contiguous mathematical chain from subatomic nucleon structure to macroscopic gravitational acceleration, positioning the theory as a true Unified Scaling Law across physics scales. Validations include proton radius puzzle resolution (>99.8% accuracy), molecular bond angles, radioactive half-lives via Exponential Fatigue Law, and Earth's baseline gravity (9.772 m/s²)."