Test: No Auth scenarios with Copilot Agent Host Harness

[vritant24]

Refs: #330012 #330082 #330094 #330102 #330297 #330336 #330361 #330577

• anyOS TylerLeonhardt
• anyOS Vijay Upadya (@vijayupadya)

Complexity: 3

Authors: Vritant Bhardwaj (@vritant24)

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Current No Auth Scenarios work as expected

Without the following setting:

  "chat.agentHost.allowSignedOutWhenUsable": false, (default)

1. Agents Window cannot be used without signing in.
2. Copilot Harness in the editor window cannot be used without signing in.

New No Auth Scenarios

Pre-requisites

• VS code insiders
• Following settings enabled

  "chat.agentHost.allowSignedOutWhenUsable": true, 
  "chat.agentHost.byokModels.enabled": true,
  "chat.agentHost.enabled": true

When Signed out of GitHub Copilot:

1. Agents Window Sign in Dialog should show when you open it for the first time (launch using code-insiders --transient and set the settings before opening the agents window)
   • The sign in should be dismissible without signing in the agents window.
2. A notification prompting sign in should be shown on top of the chat input whenever you are signed out of GitHub Copilot and have no models available (including no BYOK models)
   • You should be able to sign in or add byok models through the buttons that notification.
   • The copilot harness should be usable with BYOK models while you're not signed in.
3. The Editor window should show the copilot harness as selectable, and also show the sign in notification in the same scenarios.
   • The copilot harness should be usable with BYOK models while you're not signed in.