feat: productize ingest lifecycle and library health

frontend/src/api/ingest.ts

@@ -16,6 +16,9 @@ export interface IngestStatusResponse {
   unreadableFiles: number;
   conversionFailedFiles: number;
   otherRejectedFiles: number;
+  lyricsFound: number;
+  lyricsMissing: number;
+  lyricsFailed: number;
   message: string;
 }
 
@@ -26,6 +29,20 @@ export function startIngest(): Promise<IngestResponse> {
   return request.post('/api/ingest/start', {});
 }
 
+/**
+ * 请求取消当前导入任务（已完成文件不会被删除）
+ */
+export function cancelIngest(): Promise<string> {
+  return request.post('/api/ingest/cancel', {});
+}
+
+/**
+ * 获取指定任务的结构化导入报告 JSON 文本（taskId 传 "latest" 取最近一份）
+ */
+export function getIngestReport(taskId: string): Promise<string> {
+  return request.get(`/api/ingest/report/${encodeURIComponent(taskId)}`);
+}
+
 /**
  * 获取当前/最近一次导入任务状态
  */