fix: refresh auth token on tab visibility change to prevent logout after inactivity

js/services/directus.js

@@ -47,6 +47,7 @@ class DirectusService {
         this.refreshTimeout = null
         
         this.loadTokens()
+        this.setupVisibilityRefresh()
     }
 
     // ==================== Token Management ====================
@@ -109,6 +110,17 @@ class DirectusService {
         }
     }
 
+    setupVisibilityRefresh() {
+        document.addEventListener('visibilitychange', () => {
+            if (document.visibilityState === 'visible' && this.refreshToken) {
+                const timeLeft = this.tokenExpiry - Date.now()
+                if (timeLeft < 60000) {
+                    this.refreshSession()
+                }
+            }
+        })
+    }
+
     isAuthenticated() {
         return !!this.accessToken && (!this.tokenExpiry || Date.now() < this.tokenExpiry)
     }