Major refactor: simplify to minimal core

Refactor: merge convert_log.sh into ralph.sh, add shell script verifier

Enhance ralph.sh with yolo mode, real-time output, test mode, and improved features

Simplify and secure ralph.sh

Allow model selection in ralph.sh, defaulting to glm-4.7-free

Fix: Adjust opencode arguments order in ralph.sh

Fix: Remove template publishing instructions and unignore RESEARCH_INSTRUCTIONS.md

Ignore root RESEARCH_INSTRUCTIONS.md

Initial commit