User reported: '已连接, 但终端啥也不显示'
Likely cause: command ran but stdout was empty / scrolled to wrong place
/ output widget didn't refresh before worker finished.
Changes:
- Eagerly show the typed command in the output area (\$ <cmd>) so user
sees the input was received even if the worker hangs/fails
- Show '(stdout 为空)' placeholder when worker returns no output, so it's
clear the worker actually ran
- Force output.repaint() and ensureCursorVisible() after append
- Add 2 diagnostic buttons in terminal bottom bar:
* [🔍 诊断] prints current SSH connection / worker state
* [▶ 测试命令] pre-fills a known-good test command
- Make CommandWorker explicitly check conn.connected before exec
- Surface full traceback in stderr on exception instead of bare str(e)
All 15 existing tests still pass (core 6/6 + UI 3/3 + E2E 6/6).
- Remove all non-ASCII text (cmd default GBK mangles UTF-8)
- Replace 'if errorlevel 1 (' multi-line blocks with 'goto :label'
- Replace 'echo(' with 'echo.'
- Use 'for %%I' to get file size (avoid UTF-8 console findstr issues)
- All error paths now end with explicit exit /b 1
Fixes#1: '涓嬭浇鍦板潃' (mojibake) and '('") parse errors.
Hermes