⚛️ Quantum Entanglement Simulator Observatory: Seven-Scene Hub with Bell/CHSH Decoherence, Double Slit, Tunneling, Collider, Hydrogen Orbitals, Qubit Circuits and Black Hole Lensing

A seven-experiment quantum observatory with a Blender-built holographic stage: Bell-pair entanglement with decoherence and a CHSH test, single-particle double-slit interference, wave-packet tunnelling, a collider detector with a Z lineshape scan, hydrogen orbitals and spectral lines, a 3-qubit circuit simulator, and a Schwarzschild ray-traced black hole.