chore: change fs get and list resp

internal/bootstrap/data/setting.go

@@ -12,6 +12,7 @@ import (
 var initialSettingItems = []model.SettingItem{
 	// site settings
 	{Key: "version", Value: conf.Version, Type: conf.TypeString, Group: model.SITE, Flag: model.READONLY},
+	{Key: "base_url", Value: "", Type: conf.TypeString, Group: model.SITE},
 	{Key: "site_title", Value: "AList", Type: conf.TypeString, Group: model.SITE},
 	{Key: "site_logo", Value: "https://cdn.jsdelivr.net/gh/alist-org/logo@main/logo.svg", Type: conf.TypeString, Group: model.SITE},
 	{Key: "favicon", Value: "https://cdn.jsdelivr.net/gh/alist-org/logo@main/logo.svg", Type: conf.TypeString, Group: model.SITE},

internal/setting/setting.go

@@ -5,8 +5,15 @@ import (
 	"strconv"
 )
 
-func GetByKey(key string) string {
-	return db.GetSettingsMap()[key]
+func GetByKey(key string, defaultValue ...string) string {
+	val, ok := db.GetSettingsMap()[key]
+	if !ok {
+		if len(defaultValue) > 0 {
+			return defaultValue[0]
+		}
+		return ""
+	}
+	return val
 }
 
 func GetIntSetting(key string, defaultVal int) int {