Yep, this is the end. Pressing Escape should take you to an ending screen, but on web there might be some issues especially in fullscreen.
For Second Wind, the issue actually has nothign to do with eating corpses - I misplaced a line and so it only spends SP when it fails to heal you due to full health. (and is just free otherwise)
Both of these are fixed in my local build and I should have a new version up shortly.
Thanks for the reports!