feat: refact scheduler

internal/utils/encoding.go

@@ -0,0 +1,43 @@
+package utils
+
+import (
+	"bufio"
+	"io"
+	"unicode/utf8"
+
+	"golang.org/x/text/encoding/simplifiedchinese"
+	"golang.org/x/text/transform"
+)
+
+// ToUTF8 converts potentially non-UTF8 data (like GBK on Windows) to UTF-8
+func ToUTF8(data []byte) string {
+	if utf8.Valid(data) {
+		return string(data)
+	}
+	// Try GBK (common on Windows)
+	reader := transform.NewReader(
+		bufio.NewReader(
+			&byteReader{data: data},
+		),
+		simplifiedchinese.GBK.NewDecoder(),
+	)
+	result, err := io.ReadAll(reader)
+	if err != nil {
+		return string(data)
+	}
+	return string(result)
+}
+
+type byteReader struct {
+	data []byte
+	pos  int
+}
+
+func (r *byteReader) Read(p []byte) (n int, err error) {
+	if r.pos >= len(r.data) {
+		return 0, io.EOF
+	}
+	n = copy(p, r.data[r.pos:])
+	r.pos += n
+	return n, nil
+}