Paper CCXLIV: GRB 250702B as a Gravitational Helix: Four-Phase Sump Geometry, v_ph/v_gr = 3 Resonance, and IMBH-LRD Ingestion

GRB 250702B (July 2, 2025) is the longest gamma-ray burst ever recorded: seven hours of emission consisting of three quasi-periodic bursts (D, B, E) with inter-burst intervals Δt(D→B) = 2825 s and Δt(B→E) ≈ second comparable interval. We interpret this as a four-phase sump geometry signature of an intermediate-mass black hole (IMBH) ingestion of a little red dot (LRD), with the v_phase/v_group = 3 resonance arising from the framework's 1:3 rolling-ball ratio. The gravitational helix structure provides a zero-free-parameter account of the burst timing and spectral hardness. Part of the One-Octonion Brane-Bulk Framework series. Anchor DOI: 10.5281/zenodo.19120873. Community: one-octonion-brane-bulk. Author: Bharathi Dasan Jagadeesan, M.D., University of Minnesota. ORCID: 0000-0002-1143-941X.