fix: resolve CI linting and type checking errors

scaffoldforge/templates/rust/default/main.rs.j2

@@ -1,10 +1,9 @@
-// Main entry point for {{ project_name }}
+// Main entry point for {{ project_name }}.
 // Generated from GitHub Issue #{{ issue_number }}: {{ issue_title }}
-// URL: {{ issue_url }}
 
-{% for item in todo_items %}
+// {% for item in todo_items %}
 // TODO #{{ loop.index }}: {{ item }}
-{% endfor %}
+// {% endfor %}
 
 fn main() {
     println!("{{ project_name }} is running");