[BUG] Remote sessions: impossible to create new sessions — maxSessions not interpolated, missing "+ New session" button on mobile, infinite loading on web

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

## Bug Description
Multiple issues with Claude Code remote sessions on mobile/web:

1. In the mobile app, the session count variable is not interpolated and

displays as literal text: %#@maxSessions@ instead of a number.

1. The + New session button is missing entirely in the mobile app.
2. Even when creating a new session from the web interface and sending a

message, the session hangs in an infinite loading state and never responds.

## Actual Behavior

• Session count displays as 1 di %#@maxSessions@
• No + New session button is shown in the mobile app
• Creating a new session from the web and sending a message results in

infinite loading — no response ever arrives

## Environment

• Platform: iOS (mobile app) + Web browser

## Screenshots

<img width="537" height="688" alt="Image" src="https://github.com/user-attachments/assets/2d8d3014-7c11-4469-a098-074a0b92a8d9" />

img from youtube official

<img width="454" height="528" alt="Image" src="https://github.com/user-attachments/assets/6b220b1f-598e-4efa-8732-ac3ace35820b" />

What Should Happen?

Expected Behavior

• Session count should display as e.g. 1 of 32 sessions
• + New session button should be visible and accessible in the mobile app
• New sessions created from the web should load and respond normally

Error Messages/Logs

Steps to Reproduce

For mobile bug:

1. Open Claude Code mobile app (iOS)
2. Connect to a remote machine
3. Open the session drawer

For web infinite loading:

1. Open Claude Code web interface
2. Create a new remote session
3. Send any message
4. Observe: loading never resolves

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.83 (Claude Code)

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_