docs: clarify AI mode list rendering behavior on WeChat mobile (issue #9)

[Copilot]

Users reported phantom empty bullet points in WeChat mobile when converting articles — desktop renders fine, mobile shows empty <li> bullets interleaved with real content.

Root Cause

Not a project bug. The empty <li> elements are generated by the AI model in --mode ai. Desktop browsers silently skip empty <li> nodes; WeChat's mobile WebView renders every <li> regardless of content, exposing the model's unstable list output.

Analysis

• API mode (default): list HTML is deterministically generated from Markdown AST — no empty <li> possible
• AI mode (--mode ai): model output format varies by model and prompt; loose Markdown lists (items separated by blank lines) are especially prone to producing interstitial empty <li> elements after model processing

Recommended path for affected users

# Use API mode (default) — deterministic, mobile-safe
md2wechat convert article.md

# If AI mode is required, ensure source Markdown uses tight lists (no blank lines between items)

If empty bullets reproduce in API mode with the same source file, that would indicate a project-side rendering issue — a minimal HTML repro would be needed to investigate further.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/graphql
  • Triggering command: /usr/bin/gh gh auth status --disable-default-apps --disable-dev-shm-usage --disable-features=AcceptCHFrame,AvoidUnnecessaryBeforeUnloadCheckSync,DestroyProfileOnBrowserClose,DialMediaRouteProvider,GlobalMediaControls,HttpsUpgrades,LensOverlay,MediaRo--database=/root/.config/google-chrome/Crash Reports (http block)
• https://api.github.com/repos/geekjourneyx/md2wechat-skill/issues/9/comments
  • Triggering command: /usr/bin/curl curl -s -X POST -H Authorization: token ****** -H Content-Type: application/json -d {"body": "\u611f\u8c22\u53cd\u9988\uff01\u7ecf\u8fc7\u5206\u6790\uff0c\u8fd9\u4e2a\u95ee\u9898\u9700\u8981\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u89d2\u5ea6\u6765\u770b\uff1a\n\n---\n\n## \ud83d\udccb \u95ee\u9898\u5206\u6790\n\n### \u6839\u56e0\u5224\u65ad\n\n\u (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)