Profitable and positive cash flow are two separate things. (Main difference is usually depreciation not being a cash flow item but is an expense charged against profit but there are other differences.)

Does it have to be both?

But a larger problem could well be that we never know because it is private and does not have to publish such info.

Additionally "by the half way point" does not specify how long a period it has to be profitable/cash flow positive for. A week? a month? a quarter? a half year? "by" suggests this has to happen on/before 30 June.

does this include interest payments on Elon Musk's buyout debt?

@pyrylium yes