feat: Improve WSL2 network compatibility — VPN-dependent API connections and slow streaming response

[34262315716]

Pre-submission checklist | 提交前检查

• I have searched existing issues and this has not been mentioned before | 我已搜索现有问题，确认此问题尚未被提及
• I have read the project documentation and confirmed this issue does not already exist | 我已阅读项目文档并确认此问题尚未存在
• This issue is specific to MemOS and not a general software issue | 该问题是针对 MemOS 的，而不是一般软件问题

Problem Statement | 问题陈述

When running MemOS as a plugin within OpenClaw deployed in WSL2 (Windows 11 + Ubuntu), two related issues are observed:

1. VPN Required for API Model Connections: The MemOS plugin cannot reach any upstream LLM API endpoint (e.g., OpenAI, DeepSeek, Anthropic) without a VPN or proxy connection active on the Windows host. This suggests the plugin either does not respect WSL2's proxy environment variables (HTTP_PROXY/HTTPS_PROXY) or does not handle WSL2's network bridge correctly.

2. Extremely Slow Streaming Response Under VPN: When the VPN is active and connections succeed, streaming log/token responses are noticeably laggy — there is a significant delay between each streamed chunk, making real-time interaction nearly unusable. This does not occur with the same model on the same network when used outside of WSL2 (e.g., native browser or a Windows-hosted client).

Combined, these symptoms suggest poor WSL2 network stack compatibility — likely related to how MemOS (or its plugin layer) handles:

• System proxy / environment variable discovery in WSL2
• WebSocket/SSE streaming over WSL2's virtualized network adapter
• DNS resolution or HTTP keep-alive under proxied connections

Expected Behavior | 预期行为

• MemOS should work out-of-the-box in WSL2 without requiring manual VPN configuration
• API model connections should respect system proxy settings (HTTP_PROXY, HTTPS_PROXY, NO_PROXY) or offer explicit proxy configuration
• Streaming responses under a proxy/VPN should not have excessive latency compared to native environments

Additional Context | 其他信息

Environment:

• Host OS: Windows 11
• WSL2 Distro: Ubuntu (WSL2)
• MemOS: Running as OpenClaw plugin (memos-local-plugin)
• Network Requirement: VPN/proxy mandatory for model API access (region-dependent)
• Symptom: Without VPN -> connection refused / timeout; With VPN -> streaming lag

The existing issues around network stability in proxied environments and WSL2 compatibility would also benefit from proper documentation of proxy configuration in the MemOS docs.

Willingness to Implement | 实现意愿

• I am willing to implement this myself | 我愿意自己解决
• I would like someone else to implement this | 我希望其他人来解决