apply filte delay solved and refeesh token logic updated

lib/localPreference/local_preference.dart

@@ -182,6 +182,22 @@ class LocalPreference {
     return null;
   }
 
+  /// Clear only access token (keep refresh token)
+  static Future<void> clearAccessToken() async {
+    final db = await LocalDatabase().database;
+
+    await db.update(
+      'user_tokens',
+      {'access_token': ''},  // ← empty string, not null
+      where: 'id = ?',
+      whereArgs: [1],
+    );
+
+    if (kDebugMode) {
+      print('🧹 [LOCAL_PREF] Access token cleared');
+    }
+  }
+
   /// Get refresh token
   static Future<String?> getRefreshToken() async {
     final db = await LocalDatabase().database;