Improve GUI guest sorting and presence display

VRWT_Tool/VRC_OSC/internal/config/config.go

@@ -23,6 +23,7 @@ type OSCConfig struct {
 type VrcLogConfig struct {
 	SelfName     string
 	GuestNames   []string
+	GuestFile    string
 	StaffNames   []string
 	MissingCount int
 	LogPatterns  []string
@@ -91,11 +92,22 @@ func Load(path string) (*Config, error) {
 				cfg.VrcLog.StaffNames = parseList(val)
 			}
 		case "guest":
-			if key == "names" {
+			switch key {
+			case "names":
 				cfg.VrcLog.GuestNames = parseList(val)
+			case "file":
+				cfg.VrcLog.GuestFile = val
 			}
 		}
 	}
+	if cfg.VrcLog.GuestFile != "" {
+		if !filepath.IsAbs(cfg.VrcLog.GuestFile) {
+			cfg.VrcLog.GuestFile = filepath.Join(common.RootDir(), cfg.VrcLog.GuestFile)
+		}
+		if names, err := loadLines(cfg.VrcLog.GuestFile); err == nil {
+			cfg.VrcLog.GuestNames = names
+		}
+	}
 	return cfg, scanner.Err()
 }
 
@@ -116,3 +128,19 @@ func parseList(value string) []string {
 	}
 	return out
 }
+
+func loadLines(path string) ([]string, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	lines := strings.Split(string(data), "\n")
+	out := make([]string, 0, len(lines))
+	for _, line := range lines {
+		line = strings.TrimSpace(strings.TrimPrefix(line, "\ufeff"))
+		if line != "" && !strings.HasPrefix(line, "#") {
+			out = append(out, line)
+		}
+	}
+	return out, nil
+}