Remove stale cards during import that no longer exist in YGOPRODeck

src/controllers/importController.js

@@ -173,9 +173,23 @@ async function importCardsInternal() {
     }
   }
 
+  // Remove cards that no longer exist in the API
+  const apiCardIds = new Set(cards.map(c => c.id));
+  const staleIds = existingCards.map(r => r.id).filter(id => !apiCardIds.has(id));
+  if (staleIds.length) {
+    for (let i = 0; i < staleIds.length; i += 500) {
+      const chunk = staleIds.slice(i, i + 500);
+      const placeholders = chunk.map(() => '?').join(',');
+      await db.execute(`DELETE FROM card_images WHERE card_id IN (${placeholders})`, chunk);
+      await db.execute(`DELETE FROM card_sets_rarity WHERE card_id IN (${placeholders})`, chunk);
+      await db.execute(`DELETE FROM cards WHERE id IN (${placeholders})`, chunk);
+    }
+  }
+
   return {
     total_cards: cards.length,
     cards_added: addedCards,
+    cards_removed: staleIds.length,
     images_added: addedImages,
     set_rarities_added: addedSetRarities,
     duration_seconds: parseFloat(((Date.now() - startTime) / 1000).toFixed(2)),