feat: handle binary responses with proper byte handling

[santiagomed]

Summary

Previously, binary responses (e.g., application/octet-stream, images, audio, video) were processed incorrectly:

• TypeScript: response.text() corrupts bytes > 127 due to UTF-8 encoding
• Python: response.json() fails on binary data

Changes

Now both SDKs detect binary content types and handle them properly:

SDK	Method	Return Type
TypeScript	response.arrayBuffer()	ArrayBuffer
Python	response.content	bytes

Supported Binary Content Types

• application/octet-stream
• image/*
• audio/*
• video/*

Usage

TypeScript

const data = await client.someEndpoint.download({ id: '123' });
const bytes = new Uint8Array(data); // Convert to Uint8Array if needed

Python

data = client.some_endpoint.download(id='123')
# data is already bytes, use directly or save to file
with open('output.bin', 'wb') as f:
    f.write(data)

Testing

• Regenerated both SDKs and verified binary handling code is present
• TypeScript: cargo run -- typescript --latest true
• Python: cargo run -- python --latest true

Files Changed

• xdk-gen/templates/typescript/main_client.j2 - Added ArrayBuffer handling
• xdk-gen/templates/python/client_macros.j2 - Added bytes handling