### 3. Backup Existing System

Before migration:

1. Export current search configurations
2. Backup existing indices and data
3. Document custom integrations and API endpoints
4. Save user access control settings

---

## Migration Methods

### Google Search Appliance (GSA) / Google Mini

Fess provides comprehensive GSA migration support through configuration import and API compatibility.

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                        fullResponse.length(), htmlContent.length(), System.currentTimeMillis() - renderStartTime);
            }

            // Create and save assistant message (user message was already added at the start)
            final ChatMessage assistantMessage = ChatMessage.assistantMessage(fullResponse.toString());
            assistantMessage.setHtmlContent(htmlContent);

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