CDN-212: The Null Moves

CDN-212 attaches the Agol et al. 2024 arXiv source forecast CSV to the same 23 JWST transit times used by CDN-211. All 23 times match published forecast rows, moving the timing null from a linear ephemeris scout to the published NbodyGradient forecast. The largest observed-minus-forecast residual is 50.530 seconds, RMS is 11.466 seconds, and max normalized residual is 1.302. This is a published-null attachment, not a TTY candidate: the forecast solution includes the JWST times, only one inherited Laplace mode remains projectable, and no independent holdout residual table is attached.