fix: 更新 callGeminiAPI 函数参数类型以支持空数组

src/llm/gemini.ts

@@ -1,4 +1,4 @@
-async function callGeminiAPI(articleContent: string[]): Promise<any> {
+async function callGeminiAPI(articleContent: string[] | []): Promise<any> {
     // articleContent = `You are a helpful assistant that summarizes WeChat articles.use Chinese: ${articleContent}`;
     // const response = (await model.generateContent(articleContent)).response;
     // return response.text();