- Introduce `0.unity` recovery scene for testing and backup purposes.
- Add `Pump` GameObject with components including Rigidbody, CapsuleCollider, and MeshRenderer for physics interactions.
- Add `Upper` GameObject with a Transform component for hierarchical relationships.
- Configure physics parameters such as damping, constraints, and Rigidbody properties.
- Update object layers, tags, and rendering configurations for improved scene setup.
- Introduce `0Friction` and `100Friction` physics materials for improved control over object interactions.
- Update `SampleScene` with modified Rigidbody and physics properties, including mass, damping, and material assignments.
- Replace outdated mesh references and add new `CapsuleCollider` for the `Pump` object.
- Adjust object layers, transforms, and configurable joint parameters for enhanced physics behavior.
