- Updated all relevant source files to include the new license header.
- Changed the default license in the configuration from MIT to GPL-3.0-or-later.
- `dcr gen` command for IDE integration and build tool support
- `dcr gen project-info`: Output project metadata as JSON
- `dcr gen compile-commands`: Generate `compile_commands.json` for clangd and clang-tidy
- `dcr gen vscode`: Generate VS Code `.vscode/` integration (launch.json, tasks.json, settings.json)
- `dcr gen clion`: Generate JetBrains CLion `.idea/` integration (run configurations, build targets)
- Full workspace support for all `gen` subcommands