Sector Paper II‑A — The Global Δi Architecture and Parity‑Odd Trispectrum Theory

UN THEORY — Sector Paper II‑A The Global Δi Architecture and Parity‑Odd Trispectrum Theory Sector Paper II‑A develops the Global Δi Architecture: the large‑scale correlation geometry that emerges from the δI‑Substrate defined in Sector Paper I. This paper constructs the full parity‑odd trispectrum from first principles, showing how the primitive parity‑odd invariant scales into a global, measurable structure across cosmological domains. The document provides:• Full definition of the Global Δi Architecture • Construction of the parity‑odd trispectrum from substrate‑level invariants • Scaling behaviour from microstructure to global correlation geometry • Spectral signatures relevant to early‑epoch cosmology • The theoretical foundation for observational calibration in Sector II‑B Sector Paper II‑A forms the theoretical half of the trispectrum framework. It contains no operational substrate, no commercial engine, and no proprietary update dynamics. This public release establishes precedence for the Δi Architecture while maintaining protection of all restricted DOI‑stamped originals.