Fix orbit values for passive nodes and connection rendering (arcs vs lines)

[justjuangui]

Summary

This PR fixes the orbit values for passive nodes and updates node overlays for
non-mastery nodes. It also corrects how passive tree connections are rendered by
distinguishing between arcs and straight lines based on the connection orbit data.

Background

When building the passive tree from data.json, the orbit value of a connection
determines whether it should be drawn as an arc or a straight line. This
mirrors the behavior found in the PSG file. The same orbit data also affects how
non-mastery node overlays are positioned.

Details

Connection rendering (arcs vs lines)

In the PSG file, a connection orbit can hold one of two values:

• 0 → the connection is an arc on that orbit
• 0x7FFFFFFF → the connection is a straight line

The data.json file follows the same pattern, expressed differently:

• orbit: 0 with orbitX and orbitY → arc
• orbit: 0 without orbitX and orbitY → straight line

Changes

• Fix orbit values for passive nodes.
• Update node overlays for non-mastery nodes.
• Detect the presence/absence of orbitX and orbitY to determine the
  connection type, and render arcs vs straight lines accordingly.

Validation

Screenshots are attached below for visual verification.