v0.1.1 - Add proxy pool support with automatic fallback

✨ What's New

This release introduces proxy pool support with automatic direct-connection fallback and improves transport reliability.

Added

• Proxy pool support with automatic proxy rotation.
• Fallback to direct connections when all proxies are unavailable.
• Proxy Support link in the table of contents.
• ClientConfig(proxy_list=[...]) examples in the client configuration section.
• New Proxy Support documentation section.
• Example proxy entries in the Examples table.
• Reference to examples/proxy-usage.py.

Proxy Support

The new proxy system includes:

• Support for the following proxy schemes:
  • http
  • https
  • socks4
  • socks4a
  • socks5
  • socks5h
• Round-robin proxy selection on every request.
• Failed proxies are temporarily disabled for the lifetime of the client instance.
• Automatic fallback to proxies=None when all proxies fail.
• HTTP 429 and 5xx responses do not permanently disable proxies.
• Transport logging that never exposes proxy credentials.

Example

client = ClientConfig(
    proxy_list=[
        "http://user:password@proxy-1.example.com:8080",
        "http://user:password@proxy-2.example.com:8080",
    ]
)