Swap order in update_simulation() to check maneuvers before physics update.
This ensures triggers fire at the correct position instead of after the
spacecraft has moved past the trigger point.
Also fix test config to avoid interference between time-based and true
anomaly triggers.
Documents a bug where true anomaly triggers set to 0 (periapsis) don't
execute because the spacecraft moves past periapsis before the trigger
check happens. The trigger check occurs after physics propagation in the
simulation update order.
- test_periapsis_burn.cpp: Three test cases demonstrating expected behavior
1. Verify periapsis distance is preserved after prograde burn (fails - shows bug)
2. Verify apoapsis raises and periapsis stays same (skipped - depends on fix)
3. Verify burn location equals new periapsis (skipped - depends on fix)
- test_periapsis_burn.toml: Test configuration with elliptical orbit satellite
starting at periapsis with a true anomaly trigger at 0
cinnaboot