Corrections required by the plan

Four points require explicit debugging.

1. The I-B conical defect is a codimension-two worldsheet. The positive width in the X track is a fixed analytical ramp or smoothing width, not a derived geometric core thickness.

2. Off-shell field nilpotence does not imply invariance of a prescribed action or descent to its free equations.

3. Ghost number is a grading. A filtration can be induced from it, but no convergence or spectral-sequence conclusion follows merely from saying “filtered by ghost number.”

4. Cancelling a single shell witness or one reciprocity number is not sufficient to define a quantum product. Complete relation, product, domain, and nilpotence identities must still be supplied.