add CLAUDE.md noting CLI includes are auto-generated

Author: cderv

docs/cli/includes/CLAUDE.md

@@ -0,0 +1,16 @@
+# CLI Reference Includes
+
+Files in this directory are **auto-generated**. Do not edit manually.
+
+## Regeneration workflow
+
+1. Update JSON from quarto CLI source:
+   ```bash
+   quarto dev-call cli-info > docs/cli/cli-info.json
+   ```
+2. Regenerate markdown includes:
+   ```bash
+   quarto run _tools/reference-cli-generate-md.R
+   ```
+
+The descriptions (e.g., tool lists in install/update/uninstall) come from quarto-cli's command definitions. To change them permanently, update the CLI source in quarto-cli.