Add comprehensive section on multi-model CLI collaboration (Gemini/Qwen/Codex):
- Three execution modes: serial, parallel, and hybrid
- Semantic invocation vs command invocation patterns
- Integration examples with Lite and Full workflows
- Best practices for tool selection and execution strategies
Updates both Chinese and English versions with practical examples showing
how to leverage ultra-long context models (Gemini/Qwen) for analysis and
Codex for precise code implementation.
Add WORKFLOW_DECISION_GUIDE_EN.md with complete English translation of the workflow decision guide, including:
- Full lifecycle command selection flowchart
- Decision point explanations with examples
- Testing and review strategies
- Complete flows for typical scenarios
- Quick reference tables by knowledge level, project phase, and work mode
- Best practices and common pitfalls