The Canonical Local Singular Series on Primorial Lattices: Strict Decrease, Crossing Structure, and the Plateau Conjecture

v1.0.2 (2026-09-13): author field now filled (Chen, Shiqiang) throughout the manuscript front matter, README, OUTLINE, .zenodo.json notes, and deposit checklist. v1.0.1 already fixed the Theorem 11 U(k) closed form to the true root k(sqrt(1+4W)-1)/(2W) (the earlier formula was the root of W r^2 + (k-W) r - k^2 = 0, a purely algebraic transcription error with no effect on conclusions). Mathematics, theorem numbering, and grade labels are final; complete manuscript, 45-script reproduction toolchain, frozen claims registers and stage ledgers S0-S7 included.