piglet

Removes streaming (deprioritized, wasn't being used so just wasted bandwidth), made screenshot dimensions exact because claude bots were failing

Replaces Piggy cursor with a standard one - models were getting tripped up.

Updates binary to have CLI

piglet start piglet join --secret=SK-YOUR-SECRET

• Adds transparent magenta circle around mouse, to make it easier to visually track
• Fixes a bug with setCursorPos which makes scripts fail in privileged settings like Task Manager (you still can't do task manager but at least the endpoints aren't 500-ing)

• h264 streaming to control host
• fixed cases of null x/y in mouse move
• fixed mouse virtual/physical scaling
• draws virtual cursor onto screenshot