GCFT-0478-0485: SM-G02 Generic-q D02 Insertion-Mixing -- Terminal Source-Normalization Boundary

This 20-page research bundle records the completed GCFT-0478-0485 SM-G02 generic-q D02 insertion-mixing goal. It brings together an eight-record sequence that begins with a bounded C1/C3 counterterm-complement audit, then fixes a four-coordinate off-shell mixing contract, executes the physical S-Bhat-Bhat generic-q kernel census, and performs a direct UV/IR reduction of the proper physical pivot. The central result is deliberately narrow and falsifiable. The proper S-Bhat-Bhat M0 residue is zero in the declared trace-weighted projection, compatible with the frozen background-field renormalization cancellation but not a zero physical-D02 RGE. The full off-shell map does not close: the missing object is identified as the q=0 BFM-BV source-normalization bridge, comprising the declared C4 S-bar-c-Omega and C5 S-Q-star-Omega / S-Q-star-c source numerators. Accordingly, the terminal decision is NAMED_SOURCE_CHANNEL_MISSING. It does not unseal a target, authorize a coefficient fit or physical retuning, claim a new cohomology class, or assert confirmation or falsification beyond the declared source-coordinate boundary. The package includes the manuscript, source hashes, page map, frozen member records, receipts, and validator outputs.