docs: Enhance MONOREPO_CONVERSION_PLAN.md with improved details

- Specify production-ready implementation details for sal-git
  package.
- Add a detailed code review and quality assurance process
  section.
- Include comprehensive success metrics and validation checklists
  for production readiness.
- Improve security considerations and risk mitigation strategies.
- Add stricter code review criteria based on sal-git's conversion.
- Update README with security configurations and environment
  variables.

git/README.md

@@ -81,6 +81,36 @@ The `herodo` CLI tool likely leverages `GitExecutor` to provide its scriptable G
 
 Both `git.rs` and `git_executor.rs` define their own specific error enums (`GitError` and `GitExecutorError` respectively) to provide detailed information about issues encountered during Git operations. These errors cover a wide range of scenarios from command execution failures to authentication problems and invalid configurations.
 
+## Configuration
+
+The git module supports configuration through environment variables:
+
+### Environment Variables
+
+- **`REDIS_URL`**: Redis connection URL (default: `redis://127.0.0.1/`)
+- **`SAL_REDIS_URL`**: Alternative Redis URL (fallback if REDIS_URL not set)
+- **`GIT_DEFAULT_BASE_PATH`**: Default base path for git operations (default: system temp directory)
+
+### Example Configuration
+
+```bash
+# Set Redis connection
+export REDIS_URL="redis://localhost:6379/0"
+
+# Set default git base path
+export GIT_DEFAULT_BASE_PATH="/tmp/git_repos"
+
+# Run your application
+herodo your_script.rhai
+```
+
+### Security Considerations
+
+- Passwords are never embedded in URLs or logged
+- Temporary credential helpers are used for HTTPS authentication
+- Redis URLs with passwords are masked in logs
+- All temporary files are cleaned up after use
+
 ## Summary
 
 The `git` module offers a powerful and flexible interface to Git, catering to both simple, high-level repository interactions and complex, authenticated command execution scenarios. Its integration with Redis for authentication configuration makes it particularly well-suited for automated systems and tools like `herodo`.