[Bug] Stuck on loading a session 85% of times

**Describe the bug**
iOS app stuck on 'seesion-loading' more often than not. After clicking on a chat in the 'sidebar'. I think even after sending a message in a loaded chat.
Tunnel connection ist "ok" tho.

**To Reproduce**
1. Installing Desktop App on macOS, installing app on Phone App on iOS.
2. In macOS app opening Settings, clicking "Sessions", clicking "Start Tunnel".
3. On phone opening camera, scanning QR from the macOS app. Connection ist established, chats are loaded.
4. Clicking on a chat on the phone.

**Screenshots**

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- **OS:** iOS 26.4, macOS 26.4 (25E246)
- **Interface:** iOS app v1.0, macOS v1.29.1

The issue involves session loading in the iOS app when connecting via tunnel from macOS. Start by examining the session loading and tunnel connection code in the iOS project. Look for network request handling and state management around chat selection. Reproduce the bug using the steps provided to understand the failure point.

Written by the indexing model from the issue text.