Frozen XVI-L dependency

XVI-L.tex and XVI-L-artifacts/ are a frozen dependency: they are cited and read, not edited. XVI-K-artifacts/hessian_full_out.txt is likewise frozen. The following items are imported as stated in XVI-L.

1. Printed cubic density ${\ell }_3$ (XVI-L, eq:L-ell3; XII-C, eq:ell3).

2. Complete weighted source ${\mathcal{J}}_{\mathrm{D}}={\sigma }_{\epsilon }{J}_3+2C_2\partial \partial {\sigma }_{\epsilon }-2M_2\partial {\sigma }_{\epsilon }$ (XVI-L, eq:L-JD).

3. Full cubic Hessian ${L^{pq}}_{ij}$ (XVI-K, prop:hess, eq:Lpq).

4. Metric-dual contraction on $-\mathcal{P}{B}^i$.

5. Ambient numerical span ${\mathcal{V}}_{\mathrm{adm}}$, $|{\Lambda }_{\mathrm{adm}}|=255$ (XVI-L, def:VL).

6. Selected extension ${\mathfrak{R}}_{\mathrm{L}}$ with ${\mathfrak{R}}_{\mathrm{L}}{|}_{{\mathcal{V}}_{\mathrm{K}}}={\mathfrak{R}}_{\mathrm{K}}$ (XVI-L, def:RL, prop:RL).

7. Coherent contact freedom (XVI-L, thm:L5); raw counts $14321/321/14000$ “are not dimensions”.

8. Subtraction-scale family ${\mathfrak{R}}_{\mathrm{L},\mu }$ and generator $A_{\mu }$ (XVI-L, thm:L6); explicit nonzero scaling residue Unresolved there.

9. Conditional root attachment under (R1)–(R3) (XVI-L, thm:L7).

versus new results. XVI-M does not alter any release claim of XVI-L: L-A/L-C remain as constructed there, L-B remains as stated there, and L-D remains not claimed. The new statements below are results about the objects of XVI-L (its admissible span, its contact freedom, its graph coefficients). They strengthen knowledge of the span without retroactively rewriting XVI-L. In particular, the graded presentation of M.2 is a new result resting on an explicitly checked kernel identification (Gate S-bv, now certified by Theorem thm:wpA-Sbv); it is not a correction of XVI-L, Theorem thm:L5.