Android app shows Mac (remote-control server) as "connected" while Mac is fully offline; prompt hangs instead of failing fast

Environment

• Claude Code CLI version: 2.1.218
• Setup: Android app (client) connects remotely to a claude server running in a terminal on macOS (Darwin 23.6.0, arm64). No Cursor involved.

Description
The Android app shows a connection status for the remote Mac running the claude server. When the Mac is taken fully offline (wifi disabled), the Android app still shows that Mac as "connected." Sending a prompt in this state hangs instead of the app detecting that the Mac is unreachable.

Steps to reproduce

1. Start a claude remote-control server in a terminal on the Mac.
2. Connect to it from the Android app over wifi.
3. Disable wifi fully on the Mac (confirm no other network path).
4. Observe the Android app's status indicator for that Mac — it still shows "connected."
5. Send a prompt from the Android app — it hangs instead of showing the Mac as disconnected.

Expected behavior
The Android app's status indicator should detect that the Mac is unreachable and show "disconnected," consistent with prior behavior.

Actual behavior
Indicator stays "connected"; prompts hang silently instead of failing fast or updating status.