remove unused metrics.angular_position

continue.md

@@ -33,5 +33,3 @@
 - **Always ask for review** before moving to the next file.
 - **Only commit when asked.**
 
-## 5. Testing Harness TODOs
-- [ ] `OrbitalMetrics::angular_position` — uses `atan2(y, x)` which is XY-plane only; meaningless for inclined orbits

docs/technical_reference.md

@@ -224,7 +224,7 @@ All satisfy vis-viva: v² = μ(2/r - 1/a).
 
 ## Testing Utilities
 
-**OrbitalMetrics**: kinetic_energy, potential_energy, total_energy, orbital_radius, velocity_magnitude, angular_position.
+**OrbitalMetrics**: kinetic_energy, potential_energy, total_energy, orbital_radius, velocity_magnitude.
 
 **OrbitTracker**: Tracks orbit completion via quadrant transitions and total rotation. 3D mode uses orbital elements for inclined orbits.
 

src/test_utilities.cpp

@@ -39,7 +39,6 @@ OrbitalMetrics calculate_orbital_metrics(CelestialBody* body, CelestialBody* par
     Vec3 relative_pos = vec3_sub(body->global_position, parent->global_position);
     metrics.orbital_radius = vec3_magnitude(relative_pos);
     metrics.velocity_magnitude = vec3_magnitude(body->global_velocity);
-    metrics.angular_position = atan2(relative_pos.y, relative_pos.x);
 
     metrics.kinetic_energy = calculate_kinetic_energy(body);
     metrics.potential_energy = calculate_potential_energy_pair(body, parent);

src/test_utilities.h

@@ -10,7 +10,6 @@ struct OrbitalMetrics {
     double total_energy;
     double orbital_radius;
     double velocity_magnitude;
-    double angular_position;
 };
 
 struct OrbitTracker {