On Stability of the Bouncing Universe Compact State Nearby Its Turning Point: A Deterministic Foundation of Symmetry Structure Breaking

We construct a rigorous real-time dynamic extension to the deterministic framework of the Extremal Quantum Black Hole (EQBH) cosmological bounce model. We formalize the chronological trajectory of the trans-Planckian turning point as a multi-stage structural phase transition within a spacetime gravitational crystal substrate, introducing a dynamic mass operator M_eff(s) that acts as a periodic lattice potential to encapsulate non-commutative horizon pixelations and ensure smooth low-density infrared decoupling into the standard flat-space Dirac equation. Under extreme spherical self-gravity contraction, matter solidifies first into a metastable Hexagonal Close-Packed (HCP) configuration. The unique linear alignment of its interstitial voids activates a dimension-5 Chern-Simons axion-photon waveguide laser. This single-axis directed radiative discharge evacuates accumulated lattice shear stress, driving a spontaneous entropic relaxation into a globally isotropic, stable Face-Centered Cubic (FCC) phase. At the exact turnaround floor (T -> 0 K), this pristine FCC vacuum matrix locks non-baryonic Cold Dark Matter as isolated ground-state EQBHs within its octahedral cavities, while its tetrahedral voids remain empty of massive matter, acting as exclusive resonators for zero-point gauge fields. Crucially, we demonstrate that this stable FCC crystal state is a metastable cosmic trigger. Due to a low critical quality factor (Q_crit approx 100), sub-Planckian electromagnetic resonances or a minor external kinetic kick from an overarching Multiverse background causes an instant collapse of the Peierls-Nabarro lattice friction barrier. This symmetry breaking propagates as a supersonic, relativistic quantum detonation wave stabilized at the Chapman-Jouguet velocity v_front approx 0.781, unlocking the trapped vacuum energy to power the non-singular cosmological bounce. Present-day observational relics—including the CMB Axis of Evil, a hyper-sharp GHz stochastic gravitational wave spike, and a parameter-free cosmic bulk flow (v_crystal = 1/3) arising from primordial rocket recoil—are derived as direct geometric signatures of this crystalline cosmic engine offering a natural top-down physical origin for the unexplained ARCADE 2 cosmic radio excess. To maintain explicit physical transparency and demonstrate the scalability of the structural transition under renormalization group evolution, the underlying equations preserve the explicit symbols of the fundamental Planck scales while operating within a modified Heaviside-Lorentz natural framework.