GitService - add barrier for setting the delegate

[lszomoru]

No description provided.

[Copilot]

Pull request overview

This PR adds a synchronization barrier to the GitService to prevent race conditions when attempting to open repositories before the Git extension delegate has been initialized. The barrier will automatically open after 10 seconds if the delegate hasn't been set.

Changes:

• Added AutoOpenBarrier to synchronize access to Git delegate initialization
• Added ILogService dependency for better error and warning logging
• Modified openRepository to wait for delegate initialization before proceeding

Comments suppressed due to low confidence (1)

src/vs/workbench/contrib/git/browser/gitService.ts:44

• When the delegate is removed via the returned disposable, the barrier remains open permanently. If the disposable is invoked and then setDelegate is called again with a new delegate, the barrier will already be open from the first call and won't provide synchronization for the second delegate initialization. This violates the stated invariant that the delegate can only be set once. Either the barrier should be recreated when the delegate is disposed, or the disposable should not allow resetting the delegate to undefined.

		return toDisposable(() => {
			this._delegate = undefined;
		});