Deleted 1 year ago
Several of your suggestions have already been implemented in one way or another in the Steam version of the game.
Shark can't attack foundations and collection nets reinforced with foundation armor.
Most tools have upgraded version made from scrap or metal. There is also upgraded grill and water purifier among others. The official Raft wiki, while bit outdated, shows most of the new things introduced.
There is Peaceful mode where hostile animals don't attack the player or their raft.
Next large update will introduce tamable animals and animal pens among other things like personal armor and backpacks.