CDN-300: The Replay Theorem, Art and Ra Editions

CDN-300 closes the CDN-292 through CDN-300 dynamic Channel-B replay chain as a theorem-level evidence machine. It combines the Xi-rheology wall, sputter map, flyby gate, tangential null, signed-residual regression, encounter ledger, replay packet, and replay harness into one locked replay theorem. A replayable low-drive packet can count as clean GCFT dynamic evidence only if its signed radial model beats speed-even and intercept alternatives by Delta AIC >= 10, with positive signed amplitude, small intercept, and subdominant tangential-control contribution. Pure tangential packets route to null controls, high-drive packets route to wall tracers, and incomplete packets route to quarantine. This upload includes the standard Art Edition and a Ra Edition using Egyptian hieroglyphic math notation with a Rosetta key mapping glyphs back to ordinary symbols.