Remote Control: iPhone app shows "No sessions found" even with Enable remote control by default ON

Bug Report

Environment:

• Mac: Claude Code desktop app
• iPhone: Claude Code iOS app
• Both devices signed into the same Claude account
• Mac not behind VPN

Steps to reproduce:

1. Enable Settings → Claude Code → "Enable remote control by default" in the Mac desktop app
2. Start a new session on Mac
3. Open Claude Code app on iPhone (same account)
4. iPhone shows "No sessions found"

Expected behavior:
New Mac sessions should automatically appear as connectable in the iPhone app when "Enable remote control by default" is ON.

Actual behavior:
No sessions appear on iPhone. The feature does not work.

What was tried:

• Confirmed same account on both devices
• Started a fresh new session (not a pre-existing one)
• No VPN or known firewall
• /web-setup command returns "not available in this environment" in the desktop app
• claude.ai/code in browser also prompted for /web-setup which could not be run