feat(s1): business tests — 5 E2E payment lifecycle flows (STA-116)

Add PaymentLifecycleTest with Temporal TestWorkflowEnvironment, real DB
(TestContainers), and mocked S2/S6 Feign clients. Covers happy path,
compliance rejection, FX lock failure, cancel-after-lock compensation,
and idempotency. Fix latent bug: PaymentWorkflowImpl used invalid
"FX_LOCKING" state string in failed event requests (no such PaymentState
enum value), causing silent event publishing failures.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Puneethkumarck

payment-orchestrator/payment-orchestrator/src/business-test/java/com/stablecoin/payments/orchestrator/AbstractBusinessTest.java

@@ -0,0 +1,14 @@
+package com.stablecoin.payments.orchestrator;
+
+import org.junit.jupiter.api.Tag;
+
+/**
+ * Base class for business (E2E) tests.
+ * <p>
+ * Extends {@link AbstractIntegrationTest} to inherit TestContainers setup and
+ * security configuration. Business tests exercise full lifecycle flows through
+ * the real Spring context with Temporal {@code TestWorkflowEnvironment}.
+ */
+@Tag("business")
+public abstract class AbstractBusinessTest extends AbstractIntegrationTest {
+}