Gaia EDR3 wide binaries — full reproduction chain for USR-2026-0047

The complete chain behind USR-2026-0047 — the wide-binary MOND test this project SELF-KILLED. That claim reports a Newtonian mean residual of 0.948 [0.939-0.958] and attributes the MOND-like 1.167 median seen elsewhere to a clip-bias artifact (28.7% of pairs clipped). It contradicts published Chae-type results, so it is exactly the kind of claim nobody should have to take on trust: the file the analysis actually reads is here. CHAIN: find_binaries_edr3.py (the Gaia archive query) -> all_columns_catalog.fits.gz (raw extract) -> parse_and_analyze.py -> wide_binaries_a0_subset.csv -> wb_clean_definitive.csv, which is the single input to _wb_method3_definitive.py in the claim-scripts dataset. NOTE ON SIZE: the raw catalog is published gzipped only; the uncompressed .fits on disk is byte-identical (verified by sha256) and was deliberately not uploaded twice. Intermediate .npz/.pkl caches are omitted — they are regenerable and carry no independent information. An outside re-run of this chain would be the first external check of a self-kill on this site.