iOS Claude Code app: dictation "release to send" doesn't trigger send

- Platform: Claude Code app on iOS
- Steps to reproduce: Use voice dictation (press and hold to record, release to send)
- Expected: Releasing the button sends the dictated message
- Actual: Message is not sent on release
- Note: The same press-and-hold-to-send dictation gesture works correctly in the regular Claude (chat) iOS app — issue appears specific to the Claude Code app
- Reproducibility: Fully reproducible

Start by reproducing the press-and-hold voice-dictation flow in the Claude Code iOS app and inspect the app's dictation handling entry point. Compare it with the regular Claude iOS app, where the same gesture works; done means releasing the button sends the dictated message reliably.

Written by the indexing model from the issue text.