v0.11.0 — the exact logical error probability, superseding the Part H bracket

Replaces the two-sided rational bracket of Part H (doi:10.5281/zenodo.21895825) with a single exact rational value. A MacWilliams-type syndrome-space character sum yields every uncorrectable count in one O(2^n n) pass instead of per-weight enumeration, reaching A_7 = 832,441,445 at distance 5 — a quantity Part H named as beyond a pure-Python checker. The exact values fall strictly inside the Part H brackets (at 0.36 and 0.51 of their widths), so the earlier result stands as the independent check the exact values passed. A standard-library checker re-derives everything from the mechanism list in about two minutes at d=5 and rejects eight classes of tampered certificate. Exact for the independent-mechanism noise model under the stated lookup-table decoder, not the physical circuit; distance-7 codes remain out of reach by this method. Paper: wedge2-paper/note.pdf