Fix: 修改报告模板位置

Dockerfile

@@ -32,6 +32,9 @@ COPY backend/ ./
 # Copy frontend build to static folder
 COPY --from=frontend-builder /app/frontend/dist ./static
 
+# Copy report template
+COPY sample-reports/ ./sample-reports/
+
 # Create necessary directories
 RUN mkdir -p uploads reports uploads/scan_data instance