fix(web): delay thread shortcut hints by 200 ms - #8172

💭 I notice the diff involves React state hooks rather than Effect services. I'm looking for where useThreadJumpHintVisibility is defined since it's imported into Sidebar.tsx but only the Sidebar.tsx and Sidebar.logic.ts changes are shown in the diff—I need to check if that hook actually exists somewhere.

1. git_tools — useThreadJumpHintVisibility

2. browse_code — apps/web/src/components/Sidebar.logic.ts

💭 Since the hook already existed before this diff and nothing Effect-related was touched, there's nothing to flag here. Given the "All clear" conflict with the JSON schema requirement, I'll go with a structured response that still conveys "All clear" as the title and summary. Since the check defaults to failure only when there are actual violations, and I found none, the conclusion should be success.