Add Defense System for dApp Connection Security (WalletConnect)

[Dianaaiym]

Implement the full Defense System flow inside the WalletConnect “Connect to dApp” bottom sheet.
This feature checks connected dApps for security (Premium users) or promotes the PRO upgrade (free users).

https://www.figma.com/design/TnxqoNRnFN5JK1S1xt5CwT/v.-3.0--Unstoppable-Design-System?node-id=9809-121901&t=FC9MX4r84YUuEtad-0

States to Implement:

1. Non-PRO User (Upsell Banner)

• Yellow warning banner:

⚠️ Attention!
You may connect to a fake site and lose funds.
Turn me on to stay protected.

Button → Activate → opens Premium Subscription screen

2. Checking (Premium user, scan in progress)

• Gray box with spinner.
• Text: “Checking…”
• “Connect” button disabled until scan completes.

3. Danger (Unverified dApp)

• Red box with text:

⚠️ Danger!
This dApp is not verified. Connecting may put your funds at risk.

4. Safe (Verified dApp)

• Green box with text:

✅ Safe
I checked it. This dApp is secure to connect.

5. Network Selector (Bottom Sheet)

• List of networks:
  Ethereum, BNB Smart Chain, Polygon POS, Avalanche, Arbitrum One, Optimism

• Selecting a network re-triggers the Defense System check.