Add diverse orbit examples to test_simple config

Added bodies to demonstrate different trajectory types:
- Parabolic: e=1.0 at 0.5 AU (exactly at escape velocity)
- Inclined: circular orbit at 1.2 AU with 30° inclination
- Hyperbolic: e=1.5 at 0.5 AU (interstellar visitor trajectory)

These showcase the new dynamic orbital rendering capabilities
for parabolic, hyperbolic, and inclined orbits.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

configs/test_simple.txt

@@ -26,3 +26,15 @@ Mars 6.39e23 3.3895e6 2.244e11 0 0 0 0.8 0.3 0.1 0 2.244e11
 # Comet - eccentric orbit (e=0.7, a=2.5 AU)
 # At perihelion: 0.75 AU, aphelion: 4.25 AU
 Comet 1e14 5e3 1.122e11 0 0 0 0.5 0.8 1.0 0.7 3.74e11
+
+# Parabolic object - escape trajectory (e=1.0, at perihelion 0.5 AU)
+# Exactly at escape velocity
+Parabolic 1e13 3e3 7.48e10 0 0 0 1.0 1.0 0.5 1.0 7.48e10
+
+# Inclined asteroid - circular orbit at 1.2 AU, 30 deg inclination
+# Position: x=1.2AU*cos(0)=1.2AU, y=0, z=1.2AU*sin(30deg)=0.6AU
+Inclined 1e12 2e3 1.795e11 0 3.114e10 0 0.8 0.8 0.0 0 1.795e11
+
+# Hyperbolic visitor - incoming from interstellar space (e=1.5, a=-1.0 AU)
+# At perihelion 0.5 AU with high velocity
+Hyperbolic 1e13 3e3 7.48e10 0 0 0 0.3 1.0 0.3 1.5 -1.496e11