feat(orchestrator): observe Page Data validation

server/portal-gateway-services-bootstrap.mjs

@@ -329,6 +329,8 @@ export function bootstrapPortalGatewayServices({
     sessionSnapshotService,
     conversationMemoryService,
     observeWorkflowRun: workflowShadowObserver,
+    observeWorkflowValidation:
+      workflowShadowObserver?.observeValidation ?? null,
     observePersonalMemoryOnSuccess: async ({
       userId,
       sessionId,

server/portal-gateway-services-bootstrap.test.mjs

@@ -167,6 +167,7 @@ test('preserves Proxy, Tool, and Agent gateway wiring', () => {
   assert.equal(captured.agentOptions.maxConcurrentRuns, 3);
   assert.equal(captured.agentOptions.runTimeoutMs, 9000);
   assert.equal(captured.agentOptions.observeWorkflowRun, null);
+  assert.equal(captured.agentOptions.observeWorkflowValidation, null);
   assert.equal(captured.agentOptions.maxConcurrentShadowObservations, 2);
   assert.equal(captured.agentOptions.maxQueuedShadowObservations, 100);
 });
@@ -174,6 +175,8 @@ test('preserves Proxy, Tool, and Agent gateway wiring', () => {
 test('wires Shadow observation only behind the explicit environment gate', () => {
   const configService = { id: 'orchestrator-config' };
   const observer = async () => ({ observed: false });
+  const validationObserver = async () => ({ observed: false });
+  observer.observeValidation = validationObserver;
   let receivedObserverOptions = null;
   const setup = createSetup({
     env: {
@@ -197,6 +200,7 @@ test('wires Shadow observation only behind the explicit environment gate', () =>
   assert.equal(receivedObserverOptions.configService, configService);
   assert.equal(receivedObserverOptions.serviceToken, 'shadow-token');
   assert.equal(agentOptions.observeWorkflowRun, observer);
+  assert.equal(agentOptions.observeWorkflowValidation, validationObserver);
   assert.equal(agentOptions.maxConcurrentShadowObservations, 4);
   assert.equal(agentOptions.maxQueuedShadowObservations, 25);
 });