A value of 0 for Tokens results in a negative percentage value at the lower bound of int64 (MinInt64)

The bug is in this function, something to do with the float64 calculations being forcibly converted to int in the log statement. Claude is suggesting that this is what happens when a float NaN value is converted to an int but I didn't dig deeper to see if that's true.

https://github.com/sst/opencode/blob/34d68b777af3f28b4fba5e941e2e080a3a9c579a/packages/tui/internal/components/status/status.go#L50-L75

I'm not sure why the Tokens value ends up being 0 either.