Search endpoint now defaults to source=kaikki, searching the
vocabulary_kaikki table with 6.27M Wiktionary entries.
/filters returns kaikki_total and kaikki_languages count.
/vocabulary header shows "6,271,749 Woerter in 24 Sprachen".
Manual vocabulary_words (27 entries) still accessible via source=manual.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>