test: close backend optimization audit

scripts/backend-optimization-sop.sh

@@ -122,6 +122,14 @@ extract_counter() {
     printf '%s' "${value:-0}"
 }
 
+collect_sop_metrics() {
+    rg -o --no-filename \
+        -g '*.log' \
+        -g '*.trx' \
+        'SOP_METRIC [A-Za-z0-9_]+=[0-9]+' \
+        "$LOG_DIR" "$TRX_DIR" 2>/dev/null | sort -u
+}
+
 assert_no_skipped_tests() {
     local target=$1
     local found=0
@@ -342,7 +350,7 @@ write_summary() {
                 "$stage" "$started" "$ended" "$duration" "$exit_code" "$log" "$command"
         done
         printf '\n## Metrics\n\n'
-        if ! rg --no-filename 'SOP_METRIC [A-Za-z0-9_]+=[0-9]+' "$LOG_DIR" -g '*.log' 2>/dev/null | sort -u; then
+        if ! collect_sop_metrics; then
             printf 'No SOP_METRIC lines were produced.\n'
         fi
         printf '\n## Evidence\n\n'

tests/BuildFlow.Architecture.Tests/BackendOptimizationSopTests.cs

@@ -77,6 +77,8 @@ public sealed class BackendOptimizationSopTests
         Assert.Contains("--logger \"trx;LogFileName=", script, StringComparison.Ordinal);
         Assert.Contains("--results-directory \"$TRX_DIR\"", script, StringComparison.Ordinal);
         Assert.Contains("assert_no_skipped_tests", script, StringComparison.Ordinal);
+        Assert.Contains("collect_sop_metrics", script, StringComparison.Ordinal);
+        Assert.Contains("\"$LOG_DIR\" \"$TRX_DIR\"", script, StringComparison.Ordinal);
         Assert.Contains("SOP_METRIC", script, StringComparison.Ordinal);
         Assert.Contains("summary.md", script, StringComparison.Ordinal);
         Assert.Contains("date -u +%Y%m%dT%H%M%SZ", script, StringComparison.Ordinal);