refactor(ebook-search): simplify search and phrase matching

python/ebook_search/bm25_corpus.py

@@ -15,6 +15,7 @@ from typing import TYPE_CHECKING
 import bm25s
 from sqlalchemy import func, select, union_all
 
+from python.ebook_search.chunk_records import CHUNK_RECORD_COLUMNS
 from python.orm.richie import EbookChapter, EbookChunk, EbookSource
 
 if TYPE_CHECKING:
@@ -169,13 +170,7 @@ async def fetch_bm25_corpus_records(session: AsyncSession) -> tuple[list[dict[st
     """
     statement = (
         select(
-            EbookChunk.id.label("chunk_id"),
-            EbookChunk.text.label("text"),
-            EbookSource.id.label("source_id"),
-            EbookSource.title.label("source_title"),
-            EbookSource.author.label("source_author"),
-            EbookChapter.title.label("chapter_title"),
-            EbookChunk.page_label.label("page_label"),
+            *CHUNK_RECORD_COLUMNS,
             EbookChunk.search_text.label("bm25_text"),
         )
         .select_from(EbookChunk)