refactor(v0): render keyed row with hemplate

Move the v0 keyed todo row effect payload from Rust format! HTML into a hemplate partial and require the generated slot append to carry an HTML payload.

req: html_safety/002

req: view/001

examples/v0/src/lib.rs

@@ -4,7 +4,8 @@ pub mod ui {}
 #[cfg(test)]
 mod tests {
     use super::ui;
-    use slhx::{push, Effect, IntoEffect, NavigateMode};
+    use hemplate::Hemplate;
+    use slhx::{push, Effect, IntoEffect, NavigateMode, Payload, SafeHtml};
     use slhx_test::inspect;
 
     #[derive(Clone, Debug)]
@@ -29,6 +30,12 @@ mod tests {
         password: String,
     }
 
+    #[derive(Hemplate)]
+    #[hemplate = "partials"]
+    struct TodoRow {
+        title: String,
+    }
+
     // req: examples/001 req: ceremony/001 req: build/001 req: build/005 req: codegen/002
     #[test]
     fn counter_updates_a_generated_slot() {
@@ -47,13 +54,22 @@ mod tests {
     fn todos_append_keyed_rows_from_form_input() {
         fn add_todo(input: TodoInput) -> impl IntoEffect {
             let todo = Todo { id: 7, title: input.title };
-            ui::slots::todo_row.append(todo.id.to_string(), format!("<li>{}</li>", todo.title))
+            ui::slots::todo_row.append_html(todo.id.to_string(), render_todo_row(&todo))
         }
 
         let effect = inspect(add_todo(TodoInput { title: "Ship v0".into() }));
 
         assert!(effect.has_resource(ui::slots::todo_row.id()));
-        assert!(matches!(effect.ops(), [Effect::Insert { key, .. }] if key == "7"));
+        assert!(matches!(effect.ops(), [Effect::Insert { key, payload, .. }] if key == "7" && matches!(payload, Payload::Html(_))));
+    }
+
+    fn render_todo_row(todo: &Todo) -> SafeHtml {
+        // req: html_safety/002 req: view/001
+        SafeHtml::trusted(
+            TodoRow { title: todo.title.clone() }
+                .render()
+                .expect("v0 todo row renders"),
+        )
     }
 
     // req: examples/001 req: progressive_disclosure/001 req: build/001 req: build/005 req: codegen/004

examples/v0/templates/partials/todo_row.heml

@@ -0,0 +1 @@
+<li>{+ self.title +}</li>