feat: 支持CozeV3

relay/adaptor/coze/helper.go

@@ -1,6 +1,9 @@
 package coze
 
-import "github.com/songquanpeng/one-api/relay/adaptor/coze/constant/event"
+import (
+	"github.com/songquanpeng/one-api/relay/adaptor/coze/constant/event"
+	"strings"
+)
 
 func event2StopReason(e *string) string {
 	if e == nil || *e == event.Message {
@@ -8,3 +11,16 @@ func event2StopReason(e *string) string {
 	}
 	return "stop"
 }
+
+func splitOnDoubleNewline(data []byte, atEOF bool) (advance int, token []byte, err error) {
+	if atEOF && len(data) == 0 {
+		return 0, nil, nil
+	}
+	if i := strings.Index(string(data), "\n\n"); i >= 0 {
+		return i + 1, data[0:i], nil
+	}
+	if atEOF {
+		return len(data), data, nil
+	}
+	return 0, nil, nil
+}