fix: deeplink from camera & balance auth

[Syn-McJ]

Issue being fixed or feature implemented

• When scanning a Dash QR code with the camera app, the result is immediate confirmation without ability to modify the amount and without the "Insufficient funds" error being displayed.
• When scanning Dash QR from the app's lockscreen, the full balance can be revealed without authenticating.

What was done?

• Treat URL payment request the same as QR request, i.e., redirect user to "Send" screen.
• Request authentication for balance reveal

How Has This Been Tested?

QA

Breaking Changes

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation

For repository code-owners and collaborators only

• I have assigned this pull request to a milestone

[Copilot]

Pull Request Overview

This PR fixes issues related to how deep linking from the camera and lockscreen handles QR and URL payment requests by enforcing authentication before revealing balance details.

• Updated the SendIntro SwiftUI component to include an authCallback for secure balance toggling.
• Modified DWPaymentProcessor to treat URL payment requests the same as QR requests.
• Updated ProvideAmountViewController to pass the authCallback to SendIntro.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
DashWallet/Sources/UI/SwiftUI Components/SendIntro.swift	Added authCallback property and updated toggle logic for secure balance reveal.
DashWallet/Sources/UI/Payments/PaymentModels/DWPaymentProcessor.m	Updated condition to process URL payment requests similarly to QR requests.
DashWallet/Sources/UI/Payment Controller/Enter Amount/ProvideAmountViewController.swift	Passed the authCallback from the model to the SendIntro component.

[pankcuf]

LGTM