thebuggeddev/casebook ? reverse-engineered prompt

Build me a browser based app called Casebook that feels like a digital crime investigation board with a moody detective vibe. I want a 3D board I can move around, zoom into, and interact with, where I can place case items like suspects, evidence, notes, and locations as cards on the board. It should be easy to drag things around, open a card to read or edit details, and connect related items with visible lines or strings so the case starts to look like a real investigation wall.

Please make it feel polished and visual, not just a plain list. A simple starter case with sample content would help show how it works. If possible, let the board state persist in the browser so reloading does not wipe everything. Keep the interface approachable for someone who just wants to explore clues and relationships. Use the existing project setup and look up current docs online if you need to.