iOS: send button unresponsive after entering an active Code session

Summary

On the Claude iOS app, the orange upward-arrow send button in the chat composer becomes unresponsive after entering an active session from the Code tab. Tapping the arrow does nothing — no message is sent, no error is shown, no network activity appears to occur.

Steps to reproduce

1. Open the Claude iOS app
2. Tap the Code tab
3. Start or open a session (or attempt to — see note below)
4. Type a message in the composer
5. Tap the orange upward-arrow send button

Expected

Message is sent to the session and appears in the conversation.

Actual

Send button is visually present and tappable (no disabled styling) but tapping it has no effect. The message remains in the composer.

Environment

• Device: iPhone
• iOS: 26.5
• Claude iOS app version: 1.260430.0
• Install channel: App Store (public release)

Notes

• Code tab currently shows "No sessions found." — unclear whether the send-button failure is related to the absence of an active remote session, or whether it persists once a session is established.
• Possibly related: #32664 (iOS remote control network errors), #33771 (desktop Code tab send button invalid).

Workarounds attempted

None yet — filing before further troubleshooting so the repro state is captured.