feat: extract cms from mp/cms — initial libreshop/cms

Source moved verbatim from mp/cms/ on 2026-04-29; mp was the first
concrete adapter consuming the libreshop toolkit. Builds and publishes
git.librete.ch/libreshop/cms on every main / v* push via the standard
.gitea/workflows/build.yml shared across libreshop components.

tests/parallel-stress-test-generate-delivery-note.sh

@@ -0,0 +1,73 @@
+#!/bin/bash
+
+# Configuration variables
+METHOD="PUT"
+BASE_URL="https://localhost:8443"
+API_URL="/api/order/a00ad9d9-fa7b-4989-a37c-5ef5051325fe/generate-delivery-note"
+BEARER_TOKEN="b5739bfdb5267e51533de07dc3726aecfa8063fd5fe3d903bdef7d9f614cd99e5ee8fe227587edb29df6be2a2bf8849cd713d1e8a82b3ff2d27244a10deb849559d573e4662de0ad5844e32afbfed5f82b22d7cbd57a01b5fcc7ca251abf0bf2a5d2a050745d81f0c47a9358d58f0f9b44b66d8649f7e9f5df10b9a2fcce58bd"
+NUM_JOBS=2
+TOTAL_REQUESTS=10
+RESULTS_FILE=$(mktemp)
+
+# Export configuration variables
+export METHOD BASE_URL API_URL BEARER_TOKEN RESULTS_FILE
+
+# Create a function for the curl command
+curl_command() {
+    local id=$1
+    local output=$(curl --request "${METHOD}" \
+    --url "${BASE_URL}${API_URL}" \
+    --header "Authorization: Bearer ${BEARER_TOKEN}" \
+    --header 'content-type: application/json' \
+    --header 'cache-control: no-cache' \
+    --header 'pragma: no-cache' \
+    --compressed \
+    --insecure -s -o /dev/null -w "%{http_code} %{time_total}")
+
+    local status_code=$(echo $output | cut -d' ' -f1)
+    local time_total=$(echo $output | cut -d' ' -f2)
+
+    # Convert time to milliseconds and round to 3 decimal places using awk
+    local time_ms=$(awk -v time="$time_total" 'BEGIN {printf "%.3f", time * 1000}')
+
+    echo "Request $id: Status Code: $status_code, Time: ${time_ms}ms"
+
+    # Append results to the temporary file
+    echo "$id $status_code $time_ms" >> "$RESULTS_FILE"
+}
+
+export -f curl_command
+
+echo "Debug: ${METHOD} ${BASE_URL}${API_URL}"
+echo "Debug: ${TOTAL_REQUESTS} Total Requests in Chunks of ${NUM_JOBS}"
+
+# Use parallel to run the stress test
+seq 1 $TOTAL_REQUESTS | parallel -j $NUM_JOBS curl_command {}
+
+echo "Stress test completed."
+
+# Calculate and display statistics
+echo "Calculating statistics..."
+
+awk '
+    BEGIN {total_requests = 0; total_time = 0; success_count = 0; min_time = 1e10; max_time = 0}
+    {
+        total_requests++;
+        total_time += $3;
+        if ($2 >= 200 && $2 < 300) success_count++;
+        if ($3 < min_time) min_time = $3;
+        if ($3 > max_time) max_time = $3;
+    }
+    END {
+        printf "Overall Statistics:\n";
+        printf "Total Requests: %d\n", total_requests;
+        printf "Total Time: %.3fms\n", total_time;
+        printf "Average Response Time: %.3fms\n", total_time / total_requests;
+        printf "Success Rate: %.2f%%\n", (success_count / total_requests) * 100;
+        printf "Fastest Response: %.3fms\n", min_time;
+        printf "Slowest Response: %.3fms\n", max_time;
+    }
+' "$RESULTS_FILE"
+
+# Clean up the temporary file
+rm "$RESULTS_FILE"