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src/lib/db.ts

@@ -262,6 +262,26 @@ export class DbManager {
       throw new Error('存储类型不支持清空数据操作');
     }
   }
+
+  // ---------- 通用键值存储 ----------
+  async getGlobalValue(key: string): Promise<string | null> {
+    if (typeof (this.storage as any).getGlobalValue === 'function') {
+      return (this.storage as any).getGlobalValue(key);
+    }
+    return null;
+  }
+
+  async setGlobalValue(key: string, value: string): Promise<void> {
+    if (typeof (this.storage as any).setGlobalValue === 'function') {
+      await (this.storage as any).setGlobalValue(key, value);
+    }
+  }
+
+  async deleteGlobalValue(key: string): Promise<void> {
+    if (typeof (this.storage as any).deleteGlobalValue === 'function') {
+      await (this.storage as any).deleteGlobalValue(key);
+    }
+  }
 }
 
 // 导出默认实例