Clean up unused catalog function and wire source info into catalog view

src/core/catalog.rs

@@ -94,24 +94,6 @@ pub fn sync_catalog(db: &Database, source: &CatalogSource) -> Result<u32, Catalo
     Ok(count)
 }
 
-/// Search the local catalog database for apps matching a query.
-pub fn search_catalog(db: &Database, query: &str) -> Vec<CatalogApp> {
-    let records = db.search_catalog_apps(query).unwrap_or_default();
-    records.into_iter().map(|r| CatalogApp {
-        name: r.name,
-        description: r.description,
-        categories: r.categories
-            .map(|c| c.split(", ").map(String::from).collect())
-            .unwrap_or_default(),
-        latest_version: r.latest_version,
-        download_url: r.download_url,
-        icon_url: r.icon_url,
-        homepage: r.homepage,
-        file_size: r.file_size.map(|s| s as u64),
-        architecture: r.architecture,
-    }).collect()
-}
-
 /// Download an AppImage from the catalog to a local directory.
 pub fn install_from_catalog(app: &CatalogApp, install_dir: &Path) -> Result<PathBuf, CatalogError> {
     fs::create_dir_all(install_dir).map_err(|e| CatalogError::Io(e.to_string()))?;
@@ -351,7 +333,7 @@ mod tests {
     #[test]
     fn test_search_catalog_empty() {
         let db = crate::core::database::Database::open_in_memory().unwrap();
-        let results = search_catalog(&db, "firefox");
+        let results = db.search_catalog_apps("firefox").unwrap();
         assert!(results.is_empty());
     }
 

src/ui/catalog_view.rs

@@ -95,10 +95,20 @@ pub fn build_catalog_page(db: &Rc<Database>) -> adw::NavigationPage {
     stack.add_named(&scrolled, Some("results"));
 
     // Show empty or results based on catalog data
+    let sources = catalog::get_sources(db);
+    let enabled_sources: Vec<_> = sources.iter().filter(|s| s.enabled).collect();
     let app_count = db.catalog_app_count().unwrap_or(0);
     if app_count > 0 {
         stack.set_visible_child_name("results");
-        title.set_subtitle(&format!("{} apps available", app_count));
+        if let Some(src) = enabled_sources.first() {
+            let synced = src.last_synced.as_deref().unwrap_or("never");
+            title.set_subtitle(&format!(
+                "{} apps from {} ({}), synced: {}",
+                src.app_count, src.name, src.source_type.as_str(), synced,
+            ));
+        } else {
+            title.set_subtitle(&format!("{} apps available", app_count));
+        }
     } else {
         stack.set_visible_child_name("empty");
     }