feat: sync deployed v1.0.0-rc.38-custom.42

Sync production source including routing, billing, Astra detection and public uptime. Update custom build instructions and license packaging.

relaykit/relayconvert/internal/oai_chat/to_oai_responses_resp.go

@@ -42,7 +42,7 @@ func ChatCompletionsResponseToResponsesResponse(resp *dto.OpenAITextResponse, id
 	out := &dto.OpenAIResponsesResponse{
 		ID:        id,
 		Object:    "response",
-		CreatedAt: chatCreatedAt(resp.Created),
+		CreatedAt: dto.IntValue(chatCreatedAt(resp.Created)),
 		Status:    []byte(`"completed"`),
 		Model:     resp.Model,
 		Output:    make([]dto.ResponsesOutput, 0),