修复：CI 部署环境与 ref 错配、迁移碎片化、图片意图 source_span、章节物化脏版式、会话历史与本地语音不一致

新增：TTS 上传 COS 与分片、章节 reading_segments 物化与快照、markdown 清洗、会话消息 repository、语音 store 重构与相关测试

api/app/features/memoir/service.py

@@ -32,7 +32,7 @@ from app.features.memoir.helpers import (
     is_image_permanently_unavailable,
 )
 from app.features.memoir.memoir_images.settings import MemoirImageSettings
-from app.features.memoir.models import Book, Chapter
+from app.features.memoir.models import Book, Chapter, ChapterStoryLink
 from app.features.memory.service import MemoryService
 from app.ports.storage import ObjectStorage
 
@@ -132,7 +132,7 @@ class MemoirService:
             .where(Chapter.user_id == user_id, Chapter.is_active == True)
             .options(
                 joinedload(Chapter.images),
-                joinedload(Chapter.story_links),
+                joinedload(Chapter.story_links).joinedload(ChapterStoryLink.story),
             )
             .order_by(Chapter.order_index)
         )