Preserve active leases and align flow recovery rounds

Local review candidate only. Explicitly selected inherited prerequisites and prior repair patches; unrelated WIP and independent MQ fixes are excluded. No push or deployment authorized.

ci/test-gate.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+set -eu
+cd "$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)"
+TESTS=ShAnswerFlowTest,ShReconcileExtensionTest,ShReconcileTaskTest,ShMqEntryDefaultOffTest,ShProjectionRepairSqlGuardTest,ShFormBindingTest,SvcFlowCallbackHandlerTest,FlowReconcileJobTest,ServiceApplyFlowSubmitTest,FlowCenterClientFacadeTest,FlowCenterClientRoutingTest
+# Surefire 的选择器部分匹配也可能成功；每个指定类必须随源码存在。
+oldIFS=$IFS
+IFS=,
+for test in $TESTS; do
+    [ -n "$(find src/test/java -type f -name "$test.java" -print -quit)" ] || { echo "Missing required test class: $test" >&2; exit 2; }
+done
+IFS=$oldIFS
+if [ "$#" -eq 0 ]; then set -- test; fi
+exec mvn -B "$@" -Dtest="$TESTS" -DfailIfNoTests=true -Dsurefire.failIfNoSpecifiedTests=true -DforkCount=0 -Dspring.jpa.hibernate.ddl-auto=validate < /dev/null