feat: MakerWorld-Anbindung pro Nutzer (eigener Login, eigenes Profil, eigene Daten)

backend/src/db.js

@@ -613,4 +613,14 @@ db.exec(`
   )
 `);
 
+// MakerWorld-Zugangsdaten — pro Nutzer eigener Account (1:1), Passwort verschlüsselt
+db.exec(`
+  CREATE TABLE IF NOT EXISTS makerworld_accounts (
+    user_id      INTEGER PRIMARY KEY REFERENCES users(id) ON DELETE CASCADE,
+    username     TEXT NOT NULL,
+    password_enc TEXT NOT NULL,
+    created_at   DATETIME DEFAULT CURRENT_TIMESTAMP
+  )
+`);
+
 module.exports = db;