PeV Particle Acceleration via Horizon-Scale Energy Recycling: A Non-Singular Interior Model for Galactic Microquasars and LHAASO Anomalies

The recent detection of ultra-high-energy (UHE) gamma rays exceeding 1 PeV by LHAASO challenges standard diffusive shock acceleration models , particularly in systems with weak jets such as the low-luminosity active galactic nucleus (LLAGN) NGC 4278. We propose a phenomenological extension to general relativity wherein astrophysical black holes harbor a non-singular, radiatively active interior composed of two stratified zones: a Filtering Layer (0.6 rs ≤ r ≤ 1.2 rs) that organizes accretion flows, and a deep Conversion Layer (r ≈ 0.3 rs) supported by quantum degeneracy pressure and magnetic tension.