E_1 hom-object loci

Book II’s self-enrichment now becomes the localization mechanism. Since

[A,B] Obj(τ),

morphisms are no longer external arrows between already-given points; they are internal τ-objects with boundary characters, holomorphic interiors, and ω-germ data. The first candidates for physical sites are therefore hom-object loci: relational sites that encode how structures meet and transform, not where they sit on an imported coordinate grid. This is the first E_1-level answer to the question “where can physics live?”