beta 6 Attu could not start

**Describe the bug:**

The local app server failed before the UI was ready.

**Steps to reproduce:**
1. update beta 6
2. startup error

<img width="970" height="450" alt="Image" src="https://github.com/user-attachments/assets/ac604f05-f449-4f37-bbed-9e540cb56c03" />

**Attu version:**
3.0.0-beta.6 (3.0.0-beta.6)

**Attu version:**
