Release and distance to XV-B

and distance to XV-B{ Constructed at I2: an explicit internal amplitude space, its fixed pole normalization, uniform distributional frequency estimates, exact reconstruction, and complete finite lower-degree remainder for both $K_5$ placements.

First missing gate: I3. The construction is internal and precompositional. No justified joint characteristic operator map for ${\mathcal{T}}_{\mathrm{form}}$ is supplied.

Not released: a joint principal-symbol section, a characteristic prescription, J3–J5, or an admitted ${R_1}^{(1)}$.

XV-B remains closed. XV-A's free carrier is an exit prerequisite, not an analytic substitute for the missing coefficient.}