完善 ip 提取功能，优化更新主题样式

src/actions/base.ts

@@ -172,7 +172,7 @@ async function getUserToken(refresh = false): Promise<string> {
 // 使用用户令牌的API调用函数
 async function callByUser<R = undefined>(
   endpoint: string,
-  data: unknown,
+  data?: unknown,
 ): Promise<ApiResponse<R>> {
   try {
     let token = await getUserToken()
@@ -185,7 +185,7 @@ async function callByUser<R = undefined>(
         'Content-Type': 'application/json',
         'Authorization': `Bearer ${token}`,
       },
-      body: JSON.stringify(data),
+      body: data ? JSON.stringify(data) : undefined,
     }
 
     response = await fetch(`${API_BASE_URL}${endpoint}`, requestOptions)