chore: exclude local resource artifacts from main sync

src/app/main/clientIdentity.ts

@@ -1,6 +1,28 @@
 import type { AppPageDescriptor } from '../../store/appStore/types';
+import { isPreviewRuntime } from './previewRuntime';
 
 export const CLIENT_ID_STORAGE_KEY = 'work-app.visitor.client-id';
+const PREVIEW_CLIENT_ID_STORAGE_KEY = 'work-app.preview-runtime.client-id';
+
+function getClientStorage() {
+  if (typeof window === 'undefined') {
+    return null;
+  }
+
+  if (isPreviewRuntime()) {
+    return {
+      key: PREVIEW_CLIENT_ID_STORAGE_KEY,
+      primaryStorage: window.localStorage,
+      legacyStorage: window.sessionStorage,
+    };
+  }
+
+  return {
+    key: CLIENT_ID_STORAGE_KEY,
+    primaryStorage: window.localStorage,
+    legacyStorage: null,
+  };
+}
 
 function generateFallbackClientId() {
   return `client-${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 10)}`;
@@ -15,19 +37,38 @@ function generateClientId() {
 }
 
 export function getClientId() {
-  if (typeof window === 'undefined') {
+  const storageConfig = getClientStorage();
+
+  if (!storageConfig) {
     return '';
   }
 
-  return window.localStorage.getItem(CLIENT_ID_STORAGE_KEY)?.trim() ?? '';
+  const savedClientId = storageConfig.primaryStorage.getItem(storageConfig.key)?.trim() ?? '';
+
+  if (savedClientId) {
+    return savedClientId;
+  }
+
+  const legacyClientId = storageConfig.legacyStorage?.getItem(storageConfig.key)?.trim() ?? '';
+
+  if (legacyClientId) {
+    storageConfig.primaryStorage.setItem(storageConfig.key, legacyClientId);
+    storageConfig.legacyStorage?.removeItem(storageConfig.key);
+    return legacyClientId;
+  }
+
+  return '';
 }
 
 export function clearClientId() {
-  if (typeof window === 'undefined') {
+  const storageConfig = getClientStorage();
+
+  if (!storageConfig) {
     return;
   }
 
-  window.localStorage.removeItem(CLIENT_ID_STORAGE_KEY);
+  storageConfig.primaryStorage.removeItem(storageConfig.key);
+  storageConfig.legacyStorage?.removeItem(storageConfig.key);
 }
 
 export function getOrCreateClientId() {
@@ -37,12 +78,15 @@ export function getOrCreateClientId() {
     return existingClientId;
   }
 
-  if (typeof window === 'undefined') {
+  const storageConfig = getClientStorage();
+
+  if (!storageConfig) {
     return '';
   }
 
   const nextClientId = generateClientId();
-  window.localStorage.setItem(CLIENT_ID_STORAGE_KEY, nextClientId);
+  storageConfig.primaryStorage.setItem(storageConfig.key, nextClientId);
+  storageConfig.legacyStorage?.removeItem(storageConfig.key);
   return nextClientId;
 }