清理旧数据操作无效问题修复

include/seafile/fs/setting.hpp

@@ -6,6 +6,7 @@
 #define SEADISK_SETTING_HPP
 #include <string>
 #include <nlohmann/json.hpp>
+#include <tl/expected.hpp>
 
 namespace seafile::fs
 {
@@ -18,6 +19,10 @@ namespace seafile::fs
         std::string mount_label;
 
         NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT(Setting, server, user, password, mount_point, mount_label);
+
+        static auto load(const std::string& path) -> tl::expected<Setting, std::exception>;
+
+        static auto load(const std::filesystem::path& path) -> tl::expected<Setting, std::exception>;
     };
 }
 #endif //SEADISK_SETTING_HPP

include/seafile/literals/units.hpp

@@ -0,0 +1,26 @@
+//
+// Created by Shell on 2026/7/30.
+//
+
+#ifndef SEADISK_UNITS_HPP
+#define SEADISK_UNITS_HPP
+#include <cstddef>
+
+namespace seafile::literals {
+    constexpr std::size_t operator"" _B(unsigned long long v) {
+        return v;
+    }
+
+    constexpr std::size_t operator"" _KB(unsigned long long v) {
+        return v * 1024ULL;
+    }
+
+    constexpr std::size_t operator"" _MB(unsigned long long v) {
+        return v * 1024ULL * 1024ULL;
+    }
+
+    constexpr std::size_t operator"" _GB(unsigned long long v) {
+        return v * 1024ULL * 1024ULL * 1024ULL;
+    }
+}
+#endif //SEADISK_UNITS_HPP