MSCO 2.10.3: bolt stages and part tightness synced, snap to pivot, admin tighten/loosen

- Every bolt (Screw FSM, stage 0-8) and every part's tightness (BoltCheck/Use "Tightness", counted
  by the tool) is synced as state - before only the bolt turned on other clients, the part stayed
  loose or tight there
- Tightening a part (tool, admin, other player) snaps it exactly onto its pivot (installed parts
  sit at local 0), except screw-in parts and hinged doors/hoods
- Admin VEHICLE tab: TIGHTEN/LOOSEN per part, TIGHTEN ALL/LOOSEN ALL, bolted/loose state
- fsmdump "pivots": installed part offsets

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

MSCO.cs

@@ -11,7 +11,7 @@ namespace MSCO
         /// Version der Mod. Kleine Updates: nur die dritte Stelle erhöhen (2.9.1, 2.9.2 ...) - sie bleiben mit
         /// Servern und Mitspielern derselben ersten zwei Stellen kompatibel.
         /// </summary>
-        public const string ModVersion = "2.10.2";
+        public const string ModVersion = "2.10.3";
         /// <summary>
         /// Netzwerk-Version (die ersten beiden Stellen). Nur erhöhen, wenn sich das Protokoll inkompatibel ändert - dann
         /// auch GameServer.ModVersion im Server.