- Add validate_orbital_elements_args() with isnan/isinf checks for all
7 propagation parameters (epoch, q, e, inc, omega, node, tp); h_mag
and g_slope exempt (NaN is valid sentinel for "unknown magnitude")
- Deduplicate validation between make_orbital_elements() and _deg()
- Update SQL COMMENTs to clarify geometric vs apparent coordinates
- Add NaN/Inf rejection tests (q, e, epoch, Inf inclination)
- Add NaN H/G acceptance test (sentinel value)
- Expand error path coverage to all 4 moon families + negative body_id
- All 20 regression suites pass
Ryan Malloy
3906023ade