Processes topology: nodes rendered as tiny dots spread across a large canvas

[pierpman]

Describe the bug
On the Topology → Processes tab, nodes render as tiny, barely-visible dots spread far apart across a very large canvas. The graph is difficult to read.

To Reproduce
Steps to reproduce the behavior:

1. Navigate to Topology
2. Click the Processes tab
3. Observe that all nodes appear as tiny dots with large empty space between them

Expected behavior
Nodes should be grouped visibly within their site combos, all combos should fit within the viewport on initial load, and combo labels should be fully visible without clipping.

Screenshots
If applicable, add screenshots to help explain your problem.

Actual:

~Expected:

browser:

• All

Additional context
The issue affects both the default view (all processes) and filtered views (routing key selected). It is most noticeable on first load and when no cached layout positions exist in the browser.