Implement data migration tool and enhance KV storage support. Add automatic redirection for legacy data providers, improve user interface for migration settings, and update data handling for Classworks cloud storage. Refactor components for better integration with new storage options.

src/utils/settings.js

@@ -74,6 +74,12 @@ function generateUUID() {
   });
 }
 
+// 新增: Classworks云端存储的默认设置
+const classworksCloudDefaults = {
+  "server.domain": "http://localhost:3030",
+  "server.siteKey": "123456",
+};
+
 /**
  * 所有配置项的定义
  * @type {Object.<string, SettingDefinition>}
@@ -182,11 +188,11 @@ const settingsDefinitions = {
   },
   "server.provider": {
     type: "string",
-    default: "indexedDB",
-    validate: (value) => ["server", "indexedDB", "kv-local", "kv-server"].includes(value),
+    default: "kv-local",
+    validate: (value) => ["kv-local", "kv-server", "classworkscloud"].includes(value),
     description: "数据提供者",
     icon: "mdi-database",
-    // 选择数据存储方式：使用本地IndexedDB或远程服务器
+    // 选择数据存储方式：使用本地存储或远程服务器
   },
 
   // 刷新设置
@@ -480,6 +486,13 @@ class SettingsManagerClass {
       }
     }
 
+    // 检查是否使用Classworks云端存储，并覆盖特定设置
+    if (this.settingsCache["server.provider"] === "classworkscloud") {
+      if (classworksCloudDefaults[key] !== undefined) {
+        return classworksCloudDefaults[key];
+      }
+    }
+
     const value = this.settingsCache[key];
     return value !== undefined ? value : definition.default;
   }