Function collect_workspace_changes 

pub async fn collect_workspace_changes(
    database_path: &Path,
    workspace: &str,
    input: &ChangesInput,
    git_binary: Option<OsString>,
) -> Result<ToolEnvelope<ChangeSet>, ApplicationError>

Collects a bounded fingerprinted local Git change set for one registered checkout.

This operation never stages, commits, modifies, or initializes repository state.

Errors

Returns ApplicationError for unknown repositories, missing snapshots, invalid scopes, unsafe refs/pathspecs, Git failures, cancellation, timeouts, or output-budget exhaustion.