Mishra, Lyra, McKernan, Mac Low, Ford & Cook (2026, ApJ submission; arXiv:2605.19241) show that the cool, magnetically-supported outer regions of AGN disks -- the dusty torus at 0.01-10 pc -- can grow dust into planetesimals via the streaming instability and pebble/gas accretion, producing tens of millions of objects from Earth-mass to super-Jupiter, and a striking exotic class: objects of pure dust whose mass exceeds the hydrogen-burning limit, 'for which little understanding of structure and evolution exists.' We accept their dust dynamics in full -- it is classical disk physics to which the framework adds nothing -- and address only the endpoint. Two existing One-Octonion Brane-Bulk (OOB) channels act on exactly the refractory nuclei the dust is built from and re-draw the planet/star boundary. (1) The G2 Floquet bulk-excursion fusion channel (Paper CCLXII) enhances heavy-nucleus fusion (C12+C12 by ~10^25) while doing nothing for hydrogen; it lowers the carbon-ignition temperature from ~6e8 K to ~7e7 K. For pure-dust composition (mu=12/7=1.71, mu_e=2, raising the degeneracy-limited Tc,max ~ mu*mu_e^(5/3)*M^(4/3)) and with no hydrogen-burning thermostat to halt contraction, the minimum carbon-igniting mass falls to ~0.2 M_sun (~212 M_Jup) -- about 5x below the standard ~1.0 M_sun carbon-core-ignition mass, which the same anchored scaling reproduces as a validation check. Thus pure-dust objects can remain inert only up to ~0.2 M_sun; above that they carbon-ignite and are protostars, not planets. (2) The forced beta-decay channel (Paper CLII), gamma+ACo->ANi+e-+nubar, is field-gated at B>=10^10 T; it is dead in the quiescent torus but fires at the terminal core collapse of the massive objects, stamping the 59Co->59Ni Q-forbidden / delta(61Ni)-excess fingerprint -- the very signature CLII identified in presolar X-type SiC supernova grains -- into the torus dust and outflows. Three falsifiable predictions follow (CCLXXIV-P1-P3), chief among them an upper mass cutoff at ~0.2 M_sun to Mishra's inert pure-dust population. We are explicit about scope: cold dust is inert (Mishra are correct in the planetary regime); the framework re-draws the boundary only after contraction and stamps the weak fingerprint only at core collapse; the order-of-magnitude steps make ~0.2 M_sun good to a factor of a few, which is all the cutoff prediction requires.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.