fix: anchor keyboard chat after dismiss

[ludwig-pro]

Summary

• wait for keyboard dismissal before calling scrollToEnd in keyboard chat flows
• keep freeze cleanup in a finally block
• add integration coverage for the dismiss -> frame -> scroll ordering

Validation

• bun test __tests__/integrations/keyboard-chat.test.tsx
• bun run tsc:src
• bun run lint
• Verified AI Chat send behavior with agent-device on Android and iOS

Before

After

[jmeistrich]

Hmm, it seems to fix Android while making iOS worse? In an earlier version I had it waiting a frame only on Android, but I thought it was fixed when using react-native-keyboard-controller version 1.21.7. Are you on that and LegendList beta.56?

At least it looked good on my Android device. I'll try it again and see if it looks bad like that on my slower Android phone.

[ludwig-pro]

i'm using the app example ( main branch + "react-native-keyboard-controller": "^1.21.7" ), I will retry with a physical android device

[ludwig-pro]

I will also record the behavior on physical device

[ludwig-pro]

Behavior on physical device :

WDYT @jmeistrich ?

iOS	Android