chore: commit save point

.idea/modules.xml

.idea/runConfigurations/changelog_print.xml

.idea/runConfigurations/documents_add.xml

.idea/runConfigurations/help.xml

.idea/runConfigurations/tasks_print.xml

README.md

application/source/commands/01_state.go

application/source/commands/02_command.go

application/source/commands/02_handler.go

application/source/commands/03_errors.go

application/source/commands/03_messages.go

application/source/commands/03_terminal.go

application/source/commands/06_definitions.go

application/source/commands/07_execute.go

application/source/commands/08_document.go

application/source/commands/08_document_add.go

application/source/commands/08_version.go

application/source/defaults.go

application/source/documents.go

application/source/go.mod