refactor(*): 代码质量 - 优化前后端实现并完善协议与画布验证

backend/internal/outbound/dns_test.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 	"testing"
 
-	"infinite-canvas/backend/internal/kernel"
+	"yingce/backend/internal/kernel"
 )
 
 func TestOutboundDNSFailurePreservesCauseWithoutExposingHost(t *testing.T) {

backend/internal/outbound/outbound.go

@@ -14,7 +14,7 @@ import (
 	"strings"
 	"time"
 
-	"infinite-canvas/backend/internal/kernel"
+	"yingce/backend/internal/kernel"
 
 	"golang.org/x/net/http/httpproxy"
 )
@@ -24,7 +24,7 @@ const (
 	maxOutboundHeaderCount   = 32
 	maxOutboundHeaderBytes   = 16 << 10
 	CustomRelayHeadersHeader = "X-Canvas-Upstream-Headers"
-	DefaultOutboundUserAgent = "InfiniteCanvas/1.0 (+https://github.com/ddcat-ai/open-ai-canvas)"
+	DefaultOutboundUserAgent = "CanvasViewport/1.0 (+https://github.com/ddcat-ai/open-ai-canvas)"
 )
 
 type OutboundHeader struct {