catalogue   metadata   harmonization

foreign key (declared, ON DELETE CASCADE)

logical join on study_id — subsystem federation, no constraint

derivation — log promote / project → served (not an FK)

+ on a card swaps its column list for a sheet: columns across, the 10 most recent rows down (snapshot at generation)

hover a cell for its full value · scroll a sheet sideways · show filters by name prefix · drag headers, bg pans, wheel zooms