Feature: Copy/view existing NWC connection string

[BenGWeeks]

Description

After creating an NWC connection, there's no way to view or copy the connection string again. If you need to re-enter the connection string in another app or device, you're forced to create a new connection.

Use Case

• I set up an NWC connection and added it to my mobile wallet
• Later, I want to add the same connection to a desktop app or browser extension
• I can't copy the existing connection string - I have to create a new one

This leads to:

• Proliferation of duplicate NWC connections
• Confusion about which connection is which
• Unnecessary connection management overhead

Proposed Solution

Add a "Copy Connection String" button or option to existing NWC connections:

1. Show a "Copy" icon/button next to each connection in the list
2. Clicking it copies the full nostr+walletconnect://... URI to clipboard
3. Optionally show the connection string in a modal (with copy button)

Security Consideration

The connection string contains the secret, so consider:

• Requiring re-authentication before revealing
• Showing a warning that the string should be kept private
• Adding an optional "hide connection strings" setting for shared screens

Benefits

• Reuse existing connections across multiple apps/devices
• Fewer duplicate connections to manage
• Better user experience for multi-device setups

[DoktorShift]

@BenGWeeks thanks you for this nice feature request. I agree with you on the UX site.

For security reasons its not implemented to show string again. Itself it´s never written to the database.
The implementation right now is designed to safe it yourself or create new string.

This design is creating some frictions in user experiance as trade off. Lets discuss it in the public

[riccardobl]

This and #12 could be gated behind a setting that is off by default, I can see this being useful on homelab deployments where you don't care about this small increase on the attack surface.

But personally I'd suggest to treat nwc strings as immutable "virtual debit cards": one per app. If you need to change something you just recreate it.