- Rename `code_helper` command to `code2context` throughout codebase
- Update README.md table of contents and references
- Update installation instructions with new binary name
- Update all usage examples in main.go help text
- Update create_coding_feature pattern documentation
- Rename cmd directory from code_helper to code2context
### CHANGES
- Introduce `cmd` directory for all main application binaries.
- Move all Go packages into the `internal` directory.
- Rename the `restapi` package to `server` for clarity.
- Consolidate patterns and strategies into a new `data` directory.
- Group all auxiliary scripts into a new `scripts` directory.
- Move all documentation and images into a `docs` directory.
- Update all Go import paths to reflect the new structure.
- Adjust CI/CD workflows and build commands for new layout.