OpenCode: Timeout waiting for plan review

[L3tum]

When the agent submits a plan with submit_plan and a browser window opens, but I don't review it right away, it reopens another browser window/tab after approximately 5-10 minutes.
Doing this approximately 5 times the agent gets fed up with the repeated timeouts and just prints the plan to the console.

I know it's not the biggest concern but I like to set the agent to do something and then leave to eat or do whatever, so that timeout isn't the nicest

[backnotprop]

This was incorrectly tied to that PR