Add proxy support for corporate networks

[valt-x]

Added support for routing traffic through SOCKS and HTTP proxies. This helps when running strix behind corporate firewalls or when you need to route different types of traffic through different proxies.

New environment variables:

• STRIX_PROXY_ALL for all traffic
• STRIX_PROXY_TOOLS for just tool traffic
• STRIX_PROXY_LLM for just LLM requests

Works with corporate proxies, SSH tunnels, and WAF allowlists.

fixes:#19

[ramiavrm-lang]

Hi @deesh-code, is ir possible to use authentication for the SOCKS and HTTP proxies?

[valt-x]

Yes of course

[TrueBurn]

Is there the ability to set custom CA cert bundles as that is also a pattern for example with ZScaler

[valt-x]

No , for now it's not possible but soon I will push a request with custom cret bundles