CLI documentation landing page

The command-line material has moved into task and reference pages so this old URL remains short and stable.

Use these pages instead:

• CLI workflows for common tasks such as getting help, simulating a model, inspecting JSON, generating code, and exporting PlantUML.

• CLI reference for command and option facts.

• Install pyfcstm for installation tasks.

• Quick Start for the shortest guided first run.

Compatibility note

This page remains in place so old links to tutorials/cli/ keep working while new command-line content goes to the maintained task and reference pages linked above.