chore: remove untested feishu/wechat adapters, polish CLI-ELECTRON.md

- Remove feishu and wechat adapters (not tested yet, will re-add later)
- Remove their rows from README.md and README.zh-CN.md
- Significantly polish CLI-ELECTRON.md skill guide:
  - Add Electron detection guide (check for Electron Framework)
  - Add Non-Electron AppleScript pattern section
  - Add port assignment table for all CDP adapters
  - Improve code examples with real working TypeScript