fix(avatar): persist SQLite WAL across releases

digital-avatar-app/docker-compose.yml

@@ -12,14 +12,15 @@ services:
     env_file:
       - .env
     environment:
-      DATABASE_URL: sqlite:////app/avatar.db
-      UPLOAD_DIR: /app/uploads
+      DATABASE_URL: sqlite:////data/db/avatar.db
+      UPLOAD_DIR: /data/uploads
       CHAT_MODEL_CONFIG_URL: http://host.docker.internal:8000/api/ai-models/runtime/digital-avatar
     extra_hosts:
       - "host.docker.internal:host-gateway"
     volumes:
-      - ${AVATAR_DB_PATH:?AVATAR_DB_PATH must point to the persistent avatar.db}:/app/avatar.db
-      - ${AVATAR_UPLOAD_DIR:?AVATAR_UPLOAD_DIR must point to persistent uploads}:/app/uploads
+      # Mount the directory, not only avatar.db: SQLite WAL/SHM files must survive recreation.
+      - ${AVATAR_DB_DIR:?AVATAR_DB_DIR must contain the persistent avatar.db}:/data/db
+      - ${AVATAR_UPLOAD_DIR:?AVATAR_UPLOAD_DIR must point to persistent uploads}:/data/uploads
     expose:
       - "8000"
     ports: