Version 6.7.7

• Artisan command astronomy:updateOrbitalElements (src/deepskylog/AstronomyLibrary/Commands/UpdateOrbitalElements.php): downloads JPL small-body element files (ELEMENTS.COMET and ELEMENTS.NUMBR), parses comet and asteroid orbital elements and imports them into the CometsOrbitalElements and AsteroidsOrbitalElements models. Performs epoch conversion (adds 2400000.5), truncates target tables before import, and uses batched inserts (500 rows) for performance. Includes basic error handling for download failures.