Add hierarchical workspace instructions

src/app/view/stats.rs

@@ -826,6 +826,7 @@ mod tests {
             content: content.to_owned(),
             model_content: None,
             tool_approval_reasons: Vec::new(),
+            instruction_metadata: None,
             markdown: markdown::Content::new(),
             transcript: text_editor::Content::new(),
             a2ui_lines_processed: 0,