Add launch statistics to dashboard

src/ui/dashboard.rs

@@ -39,7 +39,10 @@ pub fn build_dashboard_page(db: &Rc<Database>) -> adw::NavigationPage {
     // Section 5: Disk Usage (actionable)
     content.append(&build_disk_usage_group(db));
 
-    // Section 6: Quick Actions
+    // Section 6: Activity
+    content.append(&build_activity_group(db));
+
+    // Section 7: Quick Actions
     content.append(&build_quick_actions_group());
 
     clamp.set_child(Some(&content));
@@ -350,6 +353,40 @@ fn build_disk_usage_group(db: &Rc<Database>) -> adw::PreferencesGroup {
     group
 }
 
+fn build_activity_group(db: &Rc<Database>) -> adw::PreferencesGroup {
+    let group = adw::PreferencesGroup::builder()
+        .title("Activity")
+        .description("Launch history and usage statistics")
+        .build();
+
+    let total_launches = db.get_total_launch_count().unwrap_or(0);
+    let total_row = adw::ActionRow::builder()
+        .title("Total launches")
+        .subtitle(&total_launches.to_string())
+        .build();
+    group.add(&total_row);
+
+    if let Ok(Some((name, time))) = db.get_last_launch() {
+        let last_row = adw::ActionRow::builder()
+            .title("Last launched")
+            .subtitle(&format!("{} - {}", name, time))
+            .build();
+        group.add(&last_row);
+    }
+
+    if let Ok(top) = db.get_top_launched(5) {
+        for (name, count) in &top {
+            let row = adw::ActionRow::builder()
+                .title(name)
+                .subtitle(&format!("{} launches", count))
+                .build();
+            group.add(&row);
+        }
+    }
+
+    group
+}
+
 fn build_quick_actions_group() -> adw::PreferencesGroup {
     let group = adw::PreferencesGroup::builder()
         .title("Quick Actions")