- Add human ship spritesheet (ships.png) and increase frame size to 192x192
- Add jungle world background texture (world-jungle-01.png)
- Add human ship animation videos (scout, frigate, destroyer, cruiser,
battleship, transport, colony)
- Enable species card selection with required choice before starting game
- Disable "Begin" button until a species is selected
- Add title logo breathing animation and light sweep effect on landing screen
- Reposition title and start button on landing layout
