[Tyagiquamar]

Summary

Fixes #4808. When removing a body via \CMD_REMOVE_BODY, any user constraints referencing that body (either as parent, child, multi-body, rigid-body, or soft body anchor) were previously left dangling in \m_userConstraints. This could lead to invalid pointer dereferencing or stale constraint lookup on subsequent simulation steps.

Changes

1. **\PhysicsServerCommandProcessor**:
   • Added helper
     emoveUserConstraintsForBody(int bodyUniqueId, struct SharedMemoryStatus& serverCmd)\ to comprehensively find and clean up all associated user constraints, rigid body constraints, multi-body constraints, and soft body anchors attached to the target body.
   • Populated \m_userConstraintUniqueIds\ in \serverCmd.m_removeObjectArgs\ so client command processor is notified of removed user constraints.
2. **\PhysicsClientSharedMemory\ & \PhysicsDirect**:
   • Updated client status handlers to remove all returned user constraints from client-side tracking structures when a body is removed.
3. **\�3RobotSimulatorClientAPI_NoDirect**:
   • Fixed warning message log typo when
     emoveBody\ command does not complete.
4. Tests:
   • Added SDF load + body removal verification in \ est/SharedMemory/test.c.

Verification

Verified with CMake build and unit tests passing (\Test_PhysicsClientServer).