style: clean up code formatting and remove trailing whitespace

refactor: reorganize imports and fix type imports

lib/db/queries/items.ts

@@ -26,7 +26,9 @@ export interface UnifiedItem {
 /**
  * Busca item por ID unificado
  */
-export async function getItemByIdUnified(itemId: number): Promise<UnifiedItem | null> {
+export async function getItemByIdUnified(
+  itemId: number,
+): Promise<UnifiedItem | null> {
   try {
     const result = await query<UnifiedItem>(
       `
@@ -49,7 +51,7 @@ export async function getItemByIdUnified(itemId: number): Promise<UnifiedItem |
       FROM items
       WHERE item_id = $1
       `,
-      [itemId]
+      [itemId],
     );
 
     if (result.rows.length === 0) {
@@ -71,7 +73,9 @@ export async function getItemByIdUnified(itemId: number): Promise<UnifiedItem |
 /**
  * Busca item por nome (case-insensitive)
  */
-export async function getItemByNameUnified(itemName: string): Promise<UnifiedItem | null> {
+export async function getItemByNameUnified(
+  itemName: string,
+): Promise<UnifiedItem | null> {
   try {
     const result = await query<UnifiedItem>(
       `
@@ -95,7 +99,7 @@ export async function getItemByNameUnified(itemName: string): Promise<UnifiedIte
       WHERE LOWER(item_name) = LOWER($1)
       LIMIT 1
       `,
-      [itemName]
+      [itemName],
     );
 
     if (result.rows.length === 0) {
@@ -123,7 +127,7 @@ export async function itemExists(itemId: number): Promise<boolean> {
         SELECT 1 FROM items WHERE item_id = $1
       ) as exists
       `,
-      [itemId]
+      [itemId],
     );
 
     return result.rows[0]?.exists || false;
@@ -135,4 +139,3 @@ export async function itemExists(itemId: number): Promise<boolean> {
     throw error;
   }
 }
-