curl --location --request POST 'https://api.302.ai/302/claude-code/sandbox/file/upload' \
--header 'Authorization: Bearer ' \
--header 'Content-Type: application/json' \
--data-raw '{
"sandbox_id": "302-sandbox-xxxxxx",
"file": "https://file.302.ai/gpt/imgs/20260112/f946796ba85b0e22a55fd1460833ee59.png",
"path": "/home/user/workspace/ai302-test",
"auto_unzip": true
}'{
"success": true,
"file": {
"name": "ai302-test",
"type": "file",
"path": "/home/user/workspace/ai302-test",
"size": 1319952
}
}