4+1 sector template

Only after the carrier has been located can the five-generator grammar receive physical sector readouts. Boundary functoriality

:Char(𝕃) to 𝒪(τ^3)

transports the character grammar into holomorphic sectors on the carrier: α to D (gravity), π to A (weak), γ to B (electromagnetic), η to C (strong), with ω as mediator (Higgs/mass). The 4+1 template is therefore not imposed from the Standard Model. It is the sectorization of the carrier by the generator/boundary grammar already earned; its physical sector readouts remain bridge-level at this point.