Update Dockerfile

Dockerfile

@@ -59,6 +59,9 @@ RUN pip install --no-cache-dir huggingface_hub
 # 创建应用目录
 RUN mkdir account templates static
 
+# Create empty database file to ensure proper mounting
+RUN touch accounts.db
+
 # 从 frontend-builder 阶段复制后端源文件
 COPY --from=frontend-builder /app/run.py .
 COPY --from=frontend-builder /app/utils/ ./utils/