pinakes-core: update remaining modules and tests

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I9e0ff5ea33a5cf697473423e88f167ce6a6a6964

crates/pinakes-core/tests/book_metadata.rs

@@ -161,7 +161,7 @@ fn test_book_cover_generation() {
 
   // Verify all cover files exist
   for (size, path) in &covers {
-    assert!(path.exists(), "Cover {:?} should exist at {:?}", size, path);
+    assert!(path.exists(), "Cover {size:?} should exist at {path:?}");
   }
 }
 
@@ -176,13 +176,10 @@ async fn test_openlibrary_isbn_fetch() {
 
   // Should either succeed or fail gracefully
   // We don't assert success because network might not be available
-  match result {
-    Ok(book) => {
-      assert!(book.title.is_some());
-    },
-    Err(_) => {
-      // Network error or book not found - acceptable in tests
-    },
+  if let Ok(book) = result {
+    assert!(book.title.is_some());
+  } else {
+    // Network error or book not found - acceptable in tests
   }
 }
 
@@ -195,14 +192,11 @@ async fn test_googlebooks_isbn_fetch() {
   // Use a known ISBN
   let result = client.fetch_by_isbn("9780547928227").await;
 
-  match result {
-    Ok(books) => {
-      if !books.is_empty() {
-        assert!(books[0].volume_info.title.is_some());
-      }
-    },
-    Err(_) => {
-      // Network error - acceptable in tests
-    },
+  if let Ok(books) = result {
+    if !books.is_empty() {
+      assert!(books[0].volume_info.title.is_some());
+    }
+  } else {
+    // Network error - acceptable in tests
   }
 }