curl -X POST https://api.buntime.sh/files/write \
  -H "Authorization: Bearer $BUNTIME_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "sessionId": "ses_abc123",
    "path": "hello.ts",
    "content": "console.log(\"Hello World!\");"
  }'

await client.files.write({
  sessionId: 'ses_abc123',
  path: 'hello.ts',
  content: 'console.log("Hello World!");'
});

{
  "path": "hello.ts",
  "size": 29
}