How to add physics in editor using script,I have made this base metaverse level using only script, i got the way to import external libraries via code in the player code, but don't know how to enable this here

Questions
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I am attaching the json file which can be directly drag and drop on the editor.
can anyone help me so that i can add physics so that player does not passed through the block.
app.json (3.9 MB)