t() issued one SELECT per translated field (1,300+ queries on a typical
multilanguage home). It now preloads all translations of a (table,
record, language) in a single query and serves subsequent fields from
memory, preserving the previous LIMIT 1 semantics (first row per
fieldName). Measured on villagrancanaria: cold render -60% (en home)
/ -67% (es home), byte-identical output.
REQUIRES index (tableName, recordNum, prefix) on cms_traducciones —
without it the batched query scans and is SLOWER than before:
ALTER TABLE cms_traducciones ADD INDEX idx_tabla_registro_prefijo (tableName, recordNum, prefix);
