fix(download): 已入库任务不被 qB 中间态改回（H2）

importing / imported 只由整理侧推进：checkingResumeData / queuedDL / checkingUP / moving 等中间态只更新原始字段，不改回 queued / downloading / completed，completed_at 不重写；这期间也不做无进展判定。

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Cxwgnn2pbzQ7rXv3rq7fei

apps/server/src/modules/acquisition-organize/services/downloads.ts

@@ -771,7 +771,8 @@ async function observeLocked(
   let noProgressSince = row.no_progress_since;
   let lastProgressAt = row.last_progress_at;
   let stalledNow = false;
-  if (obs.status === "downloading") {
+  // importing / imported 期间(qB 重新校验 / 移动等中间态)不做无进展判定
+  if (obs.status === "downloading" && (merged.status === "downloading" || merged.status === "stalled")) {
     if (downloaded > row.downloaded_bytes || !lastProgressAt) {
       lastProgressAt = now;
       noProgressSince = null;