docs(changelog): #5404 hide inactive prompt flyouts from screen readers

CHANGELOG.md

@@ -9,6 +9,7 @@
 
 ### Fixed
 
+- **Screen readers no longer announce the approval and clarify dialogs while they're inactive.** The approval and clarify flyout cards stayed in the accessibility tree and tab order even when hidden, so a screen-reader user could land on a dialog that isn't actually showing. Inactive cards are now removed from assistive tech (`aria-hidden` + `inert`) and visually hidden (`hidden` + `display:none`), and restored when shown — with the show sequence ordered so the entrance animation still plays correctly. Thanks @sheldon-im. (#5404)
 - **Mobile: the transcript no longer jumps back up while the assistant is still rendering.** On mobile browsers, the layout engine's built-in scroll-anchoring would re-compensate `scrollTop` during the height churn of a streaming response, yanking the view back toward the top (residual of #4856). The fix suppresses browser overflow-anchoring across the *full* height-churn window rather than a single frame: consecutive renders extend one shared suppression window, and an independent hard-cap timer guarantees the suppression is always lifted (so a missed transition event can't pin it). Desktop is unaffected (no-op where the browser isn't anchoring). Thanks @allenliang2022. (#5392, #4856)
 - **The sidebar's session action menu no longer closes the moment you scroll the chat.** Opening a session's "…" action menu and then scrolling the conversation used to dismiss the menu immediately, because any scroll event closed it. Scrolls inside the chat transcript are now ignored (the menu stays put), scrolls of the sidebar list itself reposition the menu to keep it anchored to its row, and if a session-list refresh detaches that row the menu closes cleanly instead of floating orphaned. Thanks @nankingjing. (#5402, #5347)
 - **Transparent Stream no longer flickers or drops rows while the assistant is responding.** With Activity Display set to Transparent Stream, the live response area (text, thinking, and tool rows) used to visibly blink on every streamed update because the renderer tore down and rebuilt every live row each tick, replaying the entrance animation. Live rows are now reconciled by identity across rerenders — matching rows are refreshed in place (preserving the DOM node, its copy button, tool-call data, and expanded/collapsed state), stale rows are removed, and only genuinely new rows animate in. Thanks @rodboev. (#5400, #5367)