feat(inventory): implement item name autocomplete with rarity and case-insensitive search

src/modules/inventory/inventory.service.ts

@@ -1,5 +1,5 @@
 import { inventory, items, users, userTimers } from "@/db/schema";
-import { eq, and, sql, count } from "drizzle-orm";
+import { eq, and, sql, count, ilike } from "drizzle-orm";
 import { DrizzleClient } from "@/lib/DrizzleClient";
 import { economyService } from "@/modules/economy/economy.service";
 import { levelingService } from "@/modules/leveling/leveling.service";
@@ -181,5 +181,29 @@ export const inventoryService = {
 
             return { success: true, results, usageData, item };
         }, tx);
+    },
+
+    getAutocompleteItems: async (userId: string, query: string) => {
+        const entries = await DrizzleClient.select({
+            quantity: inventory.quantity,
+            item: items
+        })
+            .from(inventory)
+            .innerJoin(items, eq(inventory.itemId, items.id))
+            .where(and(
+                eq(inventory.userId, BigInt(userId)),
+                ilike(items.name, `%${query}%`)
+            ))
+            .limit(20);
+
+        const filtered = entries.filter(entry => {
+            const usageData = entry.item.usageData as ItemUsageData | null;
+            return usageData && usageData.effects && usageData.effects.length > 0;
+        });
+
+        return filtered.map(entry => ({
+            name: `${entry.item.name} (${entry.quantity}) [${entry.item.rarity || 'Common'}]`,
+            value: entry.item.id
+        }));
     }
 };