Function initialize_workspace 

pub fn initialize_workspace(
    directory: &Path,
    requested_name: Option<&str>,
) -> Result<InitReport, ApplicationError>

Creates a strict minimal workspace manifest without overwriting existing files.

Errors

When the workspace belongs to a Git worktree, generated local state is excluded through an idempotent .gitignore update that preserves all existing bytes and rules. No .gitignore is created for an unversioned directory that only contains child repositories.

Returns ApplicationError when the directory cannot be created, the destination already exists, the derived name is invalid, or the manifest and ignore rule cannot be durably written.