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

pyproject.toml

@@ -4,7 +4,6 @@ version = "0.1.0"
 description = "A crazy MCP server"
 requires-python = ">=3.10"
 dependencies = [
-    "crazy-mcp>=0.1.0",
 ]
 
 [project.optional-dependencies]