[Bug] Remote Control disconnects prematurely on network transitions with recoverable 403 errors

Bug Description
Remote Control gives up too early after a network change. Moving between networks or toggling a VPN produces an HTTP 403 in the path; Claude Code retries for three minutes, then disconnects. The network change that caused the 403 is the same one that clears it, usually within a minute or two of settling somewhere. The local process is alive and healthy the whole time, so dropping recoverable state at three minutes is the wrong tradeoff. Indefinite backoff with a visible degraded indicator would be better. Same for the ~30 minute presence-heartbeat cutoff — it quits on a process that is sitting right there.

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.1.251
• Feedback ID: f9bb7cb7-100a-4d92-868d-7b6c36fca458

Errors

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