feat: 新增项目资产库与形态参考素材

src/lib/http.ts

@@ -26,6 +26,9 @@ function isRecord(value: unknown): value is Record<string, unknown> {
 /** 兼容普通 {data} 响应，以及 POST /projects 的顶层 202 响应。 */
 export async function request<T>(path: string, options: RequestOptions = {}): Promise<T> {
     const base = (import.meta.env.VITE_API_BASE_URL || '/api').replace(/\/$/, '')
+    const multipart = typeof FormData !== 'undefined' && options.body instanceof FormData
+    const body: BodyInit | undefined =
+        options.body === undefined ? undefined : multipart ? (options.body as FormData) : JSON.stringify(options.body)
     const controller = new AbortController()
     const timeoutMs = options.timeoutMs ?? 30_000
     const timer = timeoutMs > 0 ? setTimeout(() => controller.abort(), timeoutMs) : undefined
@@ -37,9 +40,9 @@ export async function request<T>(path: string, options: RequestOptions = {}): Pr
             method: options.method ?? 'GET',
             headers: {
                 Accept: 'application/json',
-                ...(options.body === undefined ? {} : { 'Content-Type': 'application/json' })
+                ...(options.body === undefined || multipart ? {} : { 'Content-Type': 'application/json' })
             },
-            body: options.body === undefined ? undefined : JSON.stringify(options.body),
+            body,
             signal: controller.signal
         })
         const text = await response.text()