Highlights ашиглаад `keywords` үүсгэсэн (KeyBERT + MMR)(NUM_KEYWORDS=8, ngram=(1, 3), diversity=0.6, model=sentence-transformers/paraphrase-multilingual-MiniLM-L12-v2).

Update `keywords` using full `article` text with KeyBERT (NUM_KEYWORDS=8, ngram=(1, 3), diversity=0.6, MAX_DOC_CHARS=4000).

Highlights ашиглаад `title` болон `keywords` үүсгэсэнKeyBERT+MMR with multilingual MiniLM; centroid-seed for title).

initial commit