- Add cos_upload.py pure-Python COS upload method (no browser needed)
- Expand API endpoint table to include all discovered endpoints
- Document dual-verification login detection (URL + DOM)
- Add COS V1 signing algorithm explanation
- Update file reference table to match current codebase
- Remove obsolete file references (get_resource_id.py, etc.)
- Sync Chinese and English versions
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>