Refactor MCP server structure and add AI commit tool

- Restructure src/ into package src/crazy_mcp with modular tools
- Add jj.py and sandbox.py tool modules for jujutsu and sandbox management
- Remove circular dependency on crazy-mcp from pyproject.toml
- Fix async get_state call in PMOCrazyCoder.py increment tool
- Add bin/jj-ai-commit.sh for AI-generated commit messages from diffs
- Update entrypoint to copy all bin scripts and create config directory

Dockerfile

@@ -61,6 +61,9 @@ RUN groupadd --gid $USER_GID $USERNAME && \
 
 COPY docker-entrypoint.sh /usr/local/bin/entrypoint.sh
 RUN chmod +x /usr/local/bin/entrypoint.sh
+
+COPY bin/* /usr/local/bin/
+RUN chmod +x /usr/local/bin/*
 RUN mkdir -p /home/${USERNAME}/.config \
     && chown -R ${USERNAME}:${USERNAME} /home/${USERNAME}/.config
 COPY --chown=${USERNAME}:${USERNAME} opencode /home/${USERNAME}/.config/opencode