Add X11 daemon with tray status

internal/clip/clipboard.go

@@ -0,0 +1,26 @@
+package clip
+
+import (
+	"context"
+	"errors"
+	"os/exec"
+	"strings"
+)
+
+func WriteClipboard(ctx context.Context, text string) error {
+	if strings.TrimSpace(text) == "" {
+		return errors.New("empty transcript")
+	}
+
+	args := []string{"-selection", "clipboard", "-in", "-quiet", "-loops", "1"}
+	cmd := exec.CommandContext(ctx, "xclip", args...)
+	cmd.Stdin = strings.NewReader(text)
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		if len(out) > 0 {
+			return errors.New(strings.TrimSpace(string(out)))
+		}
+		return err
+	}
+	return nil
+}