feat(template-askama): add Askama template adapter for diary entries

crates/adapters/template-askama/src/lib.rs

@@ -0,0 +1,39 @@
+// crates/adapters/template-askama/src/lib.rs
+use askama::Template;
+use domain::models::{DiaryEntry, collections::Paginated};
+use presentation::ports::HtmlRenderer; // Assuming you exposed the port
+
+// The internal Askama template
+#[derive(Template)]
+#[template(path = "diary.html")]
+struct DiaryTemplate<'a> {
+    entries: &'a [DiaryEntry],
+    current_offset: u32,
+    limit: u32,
+    has_more: bool,
+}
+
+// The public adapter struct
+pub struct AskamaHtmlRenderer;
+
+impl AskamaHtmlRenderer {
+    pub fn new() -> Self {
+        Self {}
+    }
+}
+
+// Implementing the presentation port
+impl HtmlRenderer for AskamaHtmlRenderer {
+    fn render_diary_page(&self, data: &Paginated<DiaryEntry>) -> Result<String, String> {
+        let has_more = (data.offset + data.limit) < data.total_count as u32;
+
+        let template = DiaryTemplate {
+            entries: &data.items,
+            current_offset: data.offset,
+            limit: data.limit,
+            has_more,
+        };
+
+        template.render().map_err(|e| e.to_string())
+    }
+}