Use correct path for slug on Windows

[TylerLeonhardt]

Fixes microsoft/vscode#291786

[Copilot]

Pull request overview

Updates Claude session discovery to use the same project slug directory as the Claude SDK on Windows (derived from process.cwd()), instead of the hard-coded - directory, and adjusts unit tests accordingly.

Changes:

• Use this._computeFolderSlug(URI.file(process.cwd())) for multi-root and no-workspace session directories.
• Update claudeCodeSessionService.spec.ts to expect sessions under the process.cwd()-derived slug directory in no-workspace and multi-root scenarios.

Reviewed changes

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

File	Description
src/extension/agents/claude/node/claudeCodeSessionService.ts	Switches multi-root/no-workspace session scanning from - to a process.cwd()-based slug.
src/extension/agents/claude/node/test/claudeCodeSessionService.spec.ts	Updates tests to match the new session directory slug behavior for no-workspace and multi-root cases.

[Copilot]

The comment says "Multi-root or no folder - add the no-project slug", but the code now derives the slug from process.cwd(). Please update the comment to match the current behavior (and/or rename "no-project" wording) to avoid misleading future readers.

Suggested change

	// Multi-root or no folder - add the no-project slug
	// Multi-root or no workspace folder - derive a slug from the current working directory

[Copilot]

process.cwd() can throw (e.g., if the current working directory was deleted), which would make getAllSessions fail unexpectedly. Consider wrapping process.cwd() in a try/catch and falling back to a safe default (e.g., '-' or userHome) so session discovery remains resilient.