Record the input-queue pull request links

Why: The task card still had a placeholder for the primary record after the pull requests were opened.
Evidence: Dev #115 and Frontend #28 are the open records for this branch.
Impact: Reviewers can open the records from the card. No runtime change.
Refs: https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/115
Co-authored-by: Cursor <cursoragent@cursor.com>

.task/feature-input-queue.md

@@ -1,6 +1,6 @@
 # feature/input-queue 任务卡
 
-任务主记录：<PR 链接，推送后回填>；状态：进行中；owner：weichen
+任务主记录：[Dev #115](https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Dev/pulls/115)（Frontend [#28](https://git-home.u1680832.nyat.app:30319/weichen/Agent-System-Frontend/pulls/28)）；状态：进行中；owner：weichen
 
 ## 基线与授权