feat: 优化项目目录结构

apps/frontend/lib/api/oss/index.ts

@@ -0,0 +1,13 @@
+import fetcher from "../fetcher";
+
+export interface StsToken {
+    AccessKeyId: string;
+    AccessKeySecret: string;
+    Expiration: string;// ISO 8601 格式
+    SecurityToken: string;
+    userId: string;
+}
+
+export async function getStsToken() {
+    return fetcher<StsToken>('/api/oss/sts', { method: 'GET' });
+}