merge: integrate all CCR PR work (PR musistudio#677, musistudio#678, musistudio#679)

✅ COMBINED CCR FUNCTIONALITY:
- PR musistudio#677: Inline Reasoning Control Tokens (:quick, :deep, :explain, :brief)
- PR musistudio#678: Enhanced Documentation & API Guide
- PR musistudio#679: Development Workflow Scripts

🎯 COMPLETE CCR FEATURES:
- Reasoning token processing and parameter mapping
- Background model routing enhancements
- Complete documentation for GPT-5 integration
- Development workflow automation
- Enhanced logging and debugging capabilities

This branch contains ALL CCR enhancements for GPT-5 integration!

Author: semikolon