Multiplayer / dedicated-server stability fix (recommended for all servers).
The pusher-thrust follower runs on every aircraft in the scene (local, AI and remote). Its force step previously ran on aircraft this peer does not simulate, and without a non-finite-value guard — so on a dedicated server a single bad thrust value could corrupt the shared physics solver and fling every object in the world out of position.
Fixed: pusher force is now applied only by the peer that actually simulates the aircraft (host/server still drives AI normally), every physics input is finite-checked, and thrust magnitude is capped. The local aircraft, single-player and host-side AI are unaffected. No config changes.
Also includes the lateral-trim and handling refinements since the previous release.