Add focused pipeline composition coverage

README.md

@@ -65,7 +65,9 @@ private temporary paths, runs syntax and production-profile lint checks, then
 applies the baseline suite with a local syntactically valid WhisperX URL. It
 uses native application smoke/configuration commands, validates Narratio's
 assembled configuration as the Narratio account, and requires an immediate
-clean repeat. Cleanup reapplies the baseline suite and removes only the
-driver's private temporary directory.
+clean repeat. It also selects Seriatim `v1.4.0` through the suite interface,
+checks its native version output, and requires a clean repeat of that
+selection. Cleanup reapplies the baseline suite and removes only the driver's
+private temporary directory.
 
 An Ansible role to install the full D&D production pipeline (Narratio, Seriatim, Audita, Notarius, and Scriptorium, plus supporting assets).

tests/integration

@@ -61,3 +61,12 @@ run_converge "$baseline_log" "${baseline_args[@]}"
 baseline_repeat_log="$test_tmp/baseline-repeat.log"
 run_converge "$baseline_repeat_log" "${baseline_args[@]}"
 require_clean_recap "$baseline_repeat_log"
+
+selected_version_log="$test_tmp/selected-version.log"
+run_converge "$selected_version_log" "${baseline_args[@]}" \
+  -e 'dnd_pipeline_seriatim_version=v1.4.0'
+/usr/local/bin/seriatim --version | grep -Fx 'seriatim version v1.4.0'
+selected_version_repeat_log="$test_tmp/selected-version-repeat.log"
+run_converge "$selected_version_repeat_log" "${baseline_args[@]}" \
+  -e 'dnd_pipeline_seriatim_version=v1.4.0'
+require_clean_recap "$selected_version_repeat_log"