fix setting repo

[sandy081]

No description provided.

[Copilot]

Pull request overview

This PR fixes how a repository is set when creating a new cloud (remote) agent session. Previously, the RepoPicker was calling session.setOption('repositories', item) directly, and RemoteNewSession.setRepoUri was incorrectly calling setOption('repository', uri.fsPath). The fix centralizes repo-setting logic through a new _setRepo helper in RepoPicker, routes it through setRepoUri, and constructs the correct repositories option format ({ id, name }) for cloud sessions.

Changes:

• Added _setRepo() helper to RepoPicker that constructs a https://github.com/{repo.id} URI and calls setRepoUri on the session, replacing direct setOption calls.
• Updated RemoteNewSession.setRepoUri() to extract owner/repo from the URI path and set the repositories option with a properly structured { id, name } object.
• Fixed _setNewSession in NewChatWidget to wire pickers conditionally based on session target (Background vs Cloud), and updated getActiveSessionFolderData to only return folder data for Background sessions (not Cloud).

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
repoPicker.ts	Adds URI import; extracts _setRepo() helper that calls setRepoUri instead of setOption('repositories', ...) directly
newSession.ts	Fixes RemoteNewSession.setRepoUri to use uri.path.substring(1) to extract owner/repo and pass it as a repositories option item
newChatViewPane.ts	Wires pickers to sessions conditionally by target type (Background → folder/isolation/branch; Cloud → repo)
workspaceFolderManagement.ts	Fixes guard to only skip undefined sessions; restricts workspace folder assignment to Background sessions only (Cloud case commented out)