localhost keeps disconnecting for Ui mode on Linux(arch)

### Quick summary

Its practically unusable when switching manual mode only the agent pane displays effortlessly , the dashboards and site preview require constant refreshes

### Steps to reproduce

mentioned above

### What you expected to happen

Seamlessly switching to manual mode

### What actually happened

Switching panes prompts : failed to connect on localhost

### App or CLI?

Studio CLI

### Version

1.2.0

### Impact

One

### Available workarounds?

No and the app is unusable

### Platform

_No response_

### Architecture

None

### Logs or notes

_No response_

Start by reproducing the failure in Studio CLI 1.2.0 on Linux (Arch) while switching to manual mode and moving between the agent, dashboard, and site preview panes. Trace the localhost connection failure and verify that pane switching remains usable without refreshes or disconnect errors.

Written by the indexing model from the issue text.