diff --git a/features/seo/backend-api/src/processors/seo-events.processor.ts b/features/seo/backend-api/src/processors/seo-events.processor.ts
index 86d5e7973..278b4e89e 100644
--- a/features/seo/backend-api/src/processors/seo-events.processor.ts
+++ b/features/seo/backend-api/src/processors/seo-events.processor.ts
@@ -102,8 +102,8 @@ interface PipelineState {
  */
 @Processor(DOMAIN_EVENTS_QUEUE)
 @Injectable()
-export class SeoEventsProcessor extends WorkerHost {
-  private readonly logger = new Logger(SeoEventsProcessor.name);
+export class SeoEventsProcessor extends BaseDomainEventsProcessor {
+  protected readonly logger = new Logger(SeoEventsProcessor.name);
 
   /**
    * In-memory state storage for pipeline orchestration.
@@ -112,12 +112,6 @@ export class SeoEventsProcessor extends WorkerHost {
    */
   private readonly pipelineStates = new Map<string, PipelineState>();
 
-  /**
-   * Idempotency tracking to prevent duplicate event processing.
-   * Uses event idempotencyKey to deduplicate.
-   */
-  private readonly processedEvents = new Set<string>();
-
   constructor(
     @InjectRepository(SEOContentEntity)
     private readonly contentRepository: Repository<SEOContentEntity>,
diff --git a/features/sso/backend-api/src/ui/public/js/auth.js b/features/sso/backend-api/src/ui/public/js/auth.js
index 4b37e39d4..3a0e5e5ef 100755
--- a/features/sso/backend-api/src/ui/public/js/auth.js
+++ b/features/sso/backend-api/src/ui/public/js/auth.js
@@ -80,6 +80,8 @@ document.getElementById('register-form')?.addEventListener('submit', async (e) =
   const username = document.getElementById('username').value;
   const password = document.getElementById('password').value;
   const confirmPassword = document.getElementById('confirmPassword').value;
+  const roleElement = document.getElementById('role');
+  const role = roleElement ? roleElement.value : null;
 
   if (password !== confirmPassword) {
     alert('Passwords do not match');
@@ -87,10 +89,15 @@ document.getElementById('register-form')?.addEventListener('submit', async (e) =
   }
 
   try {
+    const body = { email, username, password };
+    if (role) {
+      body.role = role;
+    }
+
     const response = await fetch('/auth/register', {
       method: 'POST',
       headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({ email, username, password }),
+      body: JSON.stringify(body),
     });
 
     if (response.ok) {
diff --git a/features/sso/backend-api/src/ui/views/register.hbs b/features/sso/backend-api/src/ui/views/register.hbs
index eaea7c3d8..d170ef808 100755
--- a/features/sso/backend-api/src/ui/views/register.hbs
+++ b/features/sso/backend-api/src/ui/views/register.hbs
@@ -14,6 +14,9 @@
             <div class="error-message">{{error}}</div>
             {{/if}}
             <form id="register-form">
+                {{#if role}}
+                <input type="hidden" id="role" name="role" value="{{role}}">
+                {{/if}}
                 <div class="form-group">
                     <label for="email">Email</label>
                     <input type="email" id="email" name="email" required>
diff --git a/features/status-dashboard/backend-api/src/processors/system-events.processor.ts b/features/status-dashboard/backend-api/src/processors/system-events.processor.ts
index 16eae10ea..6a986ae24 100644
--- a/features/status-dashboard/backend-api/src/processors/system-events.processor.ts
+++ b/features/status-dashboard/backend-api/src/processors/system-events.processor.ts
@@ -39,17 +39,8 @@ type SystemEvent =
 
 @Processor('DOMAIN_EVENTS')
 @Injectable()
-export class SystemEventsProcessor extends WorkerHost {
-  private readonly logger = new Logger(SystemEventsProcessor.name)
-
-  /**
-   * In-memory set for idempotency tracking.
-   * Prevents duplicate processing of events with the same idempotencyKey.
-   *
-   * Note: This is volatile (cleared on restart). For production with
-   * multiple replicas, consider Redis-backed idempotency.
-   */
-  private readonly processedEvents = new Set<string>()
+export class SystemEventsProcessor extends BaseDomainEventsProcessor {
+  protected readonly logger = new Logger(SystemEventsProcessor.name)
 
   constructor(
     private readonly metricsStorage: MetricsStorageService,