unicity-sphere/sphere — reverse-engineered prompt

Build me a polished web app called Sphere for the Unicity network. I want it to feel like a combined crypto wallet and social hub, where someone can create or import a wallet, manage both Layer 1 and Layer 3 assets, see balances and transaction history, move tokens quickly, bridge between layers, switch wallets, use QR codes, and safely handle seed phrases and passwords.

I also want messaging built in, with private DMs, public and private group chat, unread tracking, invite codes, and simple nametags like @username. Add incoming payment notifications and live market info. There should also be an agent area where external apps can open inside Sphere, plus a wallet connect flow so a dApp can ask for permissions and trigger send, sign, or message actions. Please support unicity connect links in messages, with options to open inside Sphere or in a normal browser.

Make it run locally with the usual env setup, and include tests for the important flows. If anything is unclear, look up the current Unicity docs online.