Facts for one allele, prefix, group, deleted name, or reported shorthand

Accepts what /v1/normalize accepts: current names at 1-4 fields, legacy spellings (A0101, Cw0702, Cw07:02), deleted names, G/P group names, the XX code (A02:XX), two-field A02:01g and an optional HLA- prefix. A shorthand answers with the facts of the name it stands for plus 'resolves_to' and a flag (deprecated_name, xx_code, lg_notation); an NMDP multiple allele code (A02:AB) returns status mac_code, recognised but not expanded. 'serology' values are WMDA serological equivalents as published in rel_dna_ser.txt: an antigen number, '?' for an undetermined equivalent, or '∅' for none (null); the lab routes report these as 'uncertain' and 'null'. valid_prefix results also carry 'resolution' ({fields, level, distinguishes}): what a name with fewer than four fields does and does not distinguish, so a lab that typed to that resolution on purpose knows the member count is not telling it the typing is ambiguous. Class I (A/B/C) names carry a trailing 'ligands' object (leader_21, bw, c_group, kir_ligand; see /v1/typing/check).