diff --git a/src/api/storageManager.jsx b/src/api/storageManager.jsx
index 02e4363..7344499 100644
--- a/src/api/storageManager.jsx
+++ b/src/api/storageManager.jsx
@@ -53,6 +53,8 @@ function createCache(label, load) {
 
 class StorageManager {
   #baseUrl;
+  /** @type {EventSource | null} */
+  #events = null;
 
   constructor(baseUrl = window.location.origin) {
     this.#baseUrl = baseUrl;
@@ -215,7 +217,7 @@ class StorageManager {
     Object.defineProperties(this, {
       authMePromise: { get: () => authMeCache.promise },
       updateAuthMe: { value: authMeCache.update },
-			
+
       articleIndexPromise: { get: () => articleIndexCache.promise },
       updateArticleIndex: { value: articleIndexCache.update },
 
@@ -233,19 +235,63 @@ class StorageManager {
 
       posterminalPromise: { get: () => posterminalCache.promise },
       updatePosterminal: { value: posterminalCache.update },
+
+      /** Close and reopen GET /api/events (required after selected-company change). */
+      reconnectEvents: { value: () => this.#reconnectEvents() },
     });
   }
 
+  /**
+   * GET /api/events — SSE signals for the selected company.
+   * Stream is bound at connect time; reconnect after company switch.
+   */
+  #reconnectEvents() {
+    this.#disconnectEvents();
+    const url = buildUrl(this.#baseUrl, '/api/events');
+    const es = new EventSource(url, { withCredentials: true });
+    es.addEventListener('category', () => {
+      void this.updateCategoryTree().catch((err) => {
+        console.error('[storageMgr] category event refresh failed', err);
+      });
+    });
+    es.addEventListener('articles', () => {
+      void this.updateArticleIndex().catch((err) => {
+        console.error('[storageMgr] articles event refresh failed', err);
+      });
+    });
+    es.onerror = () => {
+      console.error('[storageMgr] events stream error');
+    };
+    this.#events = es;
+  }
+
+  #disconnectEvents() {
+    if (!this.#events) return;
+    this.#events.close();
+    this.#events = null;
+  }
+
+  #syncEvents(user) {
+    if (user?.selectedCompanyId != null) {
+      this.#reconnectEvents();
+    } else {
+      this.#disconnectEvents();
+    }
+  }
+
   async #loadAuthMe() {
     try {
       const data = await this.auth.me();
       requireObject(data, 'GET /api/auth/me');
-      return {
+      const session = {
         user: data.user,
         googleClientId: data.googleClientId,
       };
+      this.#syncEvents(session.user);
+      return session;
     } catch (err) {
       if (err.status === 401 || err.status === 403) {
+        this.#syncEvents(null);
         return {
           user: null,
           googleClientId: err.data?.googleClientId,