add make command to scaffold test data

scripts/scaffold_data.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# Directory
+DATA_DIR="test_data"
+
+if [ -d "$DATA_DIR" ]; then
+    echo "Test data directory '$DATA_DIR' already exists."
+    exit 0
+fi
+
+echo "Scaffolding test data in '$DATA_DIR'..."
+mkdir -p "$DATA_DIR/personal"
+mkdir -p "$DATA_DIR/work/project_alpha"
+mkdir -p "$DATA_DIR/archive"
+
+# Welcome Note
+cat > "$DATA_DIR/welcome.md" <<EOF
+# Welcome to Mend
+
+This is a scaffolded test environment.
+
+## Features
+- **File Tree**: Navigate using arrow keys.
+- **Notes**: View rendered Markdown.
+- **Hints**: Toggle hints with Space.
+
+Try hinting: **Space out**
+EOF
+
+# Personal Note
+cat > "$DATA_DIR/personal/todo.md" <<EOF
+# Personal Todos
+
+- [ ] Buy groceries
+- [ ] Call mom
+- [ ] Fix the **sink**
+EOF
+
+# Work Note
+cat > "$DATA_DIR/work/project_alpha/specs.md" <<EOF
+# Project Alpha Specs
+
+## Overview
+This is a **top secret** project.
+
+## Requirements
+1. Fast
+2. Reliable
+3. __Secure__
+EOF
+
+# Archive Note
+cat > "$DATA_DIR/archive/old_ideas.md" <<EOF
+# Old Ideas
+
+Just some random thoughts from the past.
+EOF
+
+echo "Done."