Richie
b995e9b6cb
Introduce four ORM models and their Alembic migration to support phrase-based query matching in the ebook RAG engine: - EbookCandidatePhrase: high-recall phrase candidates extracted per book, with source flags (ngram/yake/spacy/capitalized/metadata), scoring, and LLM judge results. - EbookProtectedPhrase: phrases accepted by the LLM judge, with canonical id, importance, and nesting controls. - EbookPhraseAlias: normalized aliases mapping to protected phrases. - EbookChunkPhraseMention: precomputed phrase occurrences within chunks. Export the new models from python.orm.richie and add a JSON_DOCUMENT helper (JSON with JSONB postgres variant) for storing sample contexts.