0.52.0

Added

• search says how many documents match in all: total. The answer carries total: { value, relation }, shaped
  as Elasticsearch's hits.total: eq is the exact count, gte a lower bound (counting stops at 10,000). It counts
  the documents the words find and those found by meaning, every page together.

Fixed

• Search by meaning inside a filter finds the filter's own documents. With a filter of at most 2,000 documents,
  every one of them is ranked by meaning, instead of the 50 nearest overall cut to the filter: budget date>=30d
  went from 7 hits to a full page on the owner's store (cli-core 0.501.0). drive requires cli-base 0.67.0.