Identify CDR regions (complementarity-determining regions) and framework regions in an antibody sequence. Supports Kabat, Chothia, and IMGT numbering schemes. Returns CDR boundaries, chain type (heavy/light), framework sequences, and CDR developability flags.

Parameters:
  sequence: Antibody heavy or light chain amino acid sequence.
  scheme: Numbering scheme — "kabat" (default), "chothia", or "imgt".

Returns: {chain_type, CDR1/2/3 sequences and positions, framework_regions, cdr_developability}