diff --git a/backend/db.js b/backend/db.js
index fbc8aa6..6b58d77 100644
--- a/backend/db.js
+++ b/backend/db.js
@@ -78,6 +78,18 @@ export const initDb = async () => {
         console.log("✅ Added has_been_analyzed column to tickets");
       } catch (e) { /* Column likely exists */ }
 
+      // MIGRATION: Add 'attachments' to tickets if not exists
+      try {
+        await pool.query("ALTER TABLE tickets ADD COLUMN attachments JSON DEFAULT NULL");
+        console.log("✅ Added attachments column to tickets");
+      } catch (e) { /* Column likely exists */ }
+
+      // MIGRATION: Add 'attachments' to ticket_messages if not exists
+      try {
+        await pool.query("ALTER TABLE ticket_messages ADD COLUMN attachments JSON DEFAULT NULL");
+        console.log("✅ Added attachments column to ticket_messages");
+      } catch (e) { /* Column likely exists */ }
+
       return;
     }
 
@@ -98,7 +110,7 @@ export const initDb = async () => {
               '{"appName": "OmniSupport AI", "primaryColor": "#0284c7", "logoUrl": "https://via.placeholder.com/150"}',
               '{"host": "smtp.example.com", "port": 587, "user": "notifications@omnisupport.ai", "pass": "password", "secure": true, "fromEmail": "noreply@omnisupport.ai"}',
               '[{"id": "t1", "name": "Conferma Apertura Ticket", "trigger": "ticket_created", "audience": "client", "subject": "Ticket #{ticket_id} Creato", "body": "Grazie per averci contattato.", "isActive": true}]',
-              '{"kbEnabled": true, "maxKbArticles": 50, "maxSupervisors": 2, "aiKnowledgeAgentEnabled": true, "maxAiGeneratedArticles": 10, "maxAgents": 10}',
+              '{"kbEnabled": true, "maxKbArticles": 50, "maxSupervisors": 2, "aiKnowledgeAgentEnabled": true, "maxAiGeneratedArticles": 10, "maxAgents": 10, "attachmentsEnabled": true, "maxFileSizeMb": 5, "allowedFileTypes": "jpg,png,pdf"}',
               '{"provider": "gemini", "apiKey": "", "model": "gemini-3-flash-preview", "isActive": true, "agentName": "OmniSupport AI", "customPrompt": ""}'
             );
         `;