GLM Coding Helper v2026.06.11-2208

Fix backend Python environment alignment.

This release fixes the issue where installation checks could pass in .venv_paddle_gpu, but captcha_worker.py later failed with:

ModuleNotFoundError: No module named 'PIL'

Root cause:

• the backend launcher could start the main backend with a Python environment different from the selected CPU/GPU venv;
• this made worker subprocesses import packages from the wrong environment.

Changes:

• gpu mode now uses .venv_paddle_gpu\Scripts\python.exe;
• cpu / cpu_parallel mode now uses .venv_paddle\Scripts\python.exe;
• auto mode selects a usable backend environment explicitly;
• startup prints Using backend Python: ...;
• incomplete selected environments now fail clearly and tell users to rebuild, instead of silently falling back to another venv.

Assets:

• glm-coding-helper-online-installer-20260611_215952.zip
• glm-coding-helper-portable-cpu-20260611_220005.zip