test: EWM-639 approval_listener test

[knightsforce]

No description provided.

[Copilot]

Pull request overview

Adds unit test coverage for browser approvals-listener network handling (EWM-639), validating both model-level network switching and AddNetwork → Connection parsing.

Changes:

• Add tests for ChangeNetworkModel.changeConnection / AddNetworkModel.changeNetwork waiting on a matching currentTransportStream strategy.
• Add tests for AddNetworkExtension.getConnection() to ensure correct ConnectionWorkchain construction for GraphQL/proto inputs and failure on invalid type.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
test/feature/browser/approvals_listener/network_models_test.dart	Verifies changeConnection/changeNetwork persist selected connection id and resolve once the matching transport strategy appears on the stream.
test/feature/browser/approvals_listener/add_network_extension_test.dart	Verifies AddNetwork.getConnection() builds expected custom connection/workchain for GraphQL and proto inputs and throws on unsupported type.

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