Expanded the game CLI with traversable query methods — you can now browse command groups and drill into entity state interactively. Added the full HTTP bridge between the CLI and the running game.

Ships now persist across asteroid regeneration instead of being lost. Fixed a stale orbit center bug where ships would orbit the wrong point after an asteroid moved, and fixed an orphaned ramp-down animation that was killing landing thrust prematurely. Added ShipOrbit tests to cover the orbit calculation edge cases.