fix: 미커밋 수정사항 정리 (purchase migration, 로컬네트워크 URL, 포트 수정)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

system1-factory/api/db/migrations/20260313100000_create_purchase_system.sql

@@ -21,6 +21,7 @@ CREATE TABLE IF NOT EXISTS vendors (
 CREATE TABLE IF NOT EXISTS consumable_items (
     item_id INT AUTO_INCREMENT PRIMARY KEY,
     item_name VARCHAR(100) NOT NULL,
+    spec VARCHAR(200) DEFAULT NULL,
     maker VARCHAR(100),
     category ENUM('consumable','safety','repair','equipment') NOT NULL
       COMMENT '소모품, 안전용품, 수선비, 설비',
@@ -30,7 +31,7 @@ CREATE TABLE IF NOT EXISTS consumable_items (
     is_active TINYINT(1) DEFAULT 1,
     created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
     updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-    UNIQUE KEY uq_name_maker (item_name, maker)
+    UNIQUE KEY uq_name_spec_maker (item_name, spec, maker)
 );
 
 -- 구매신청 (tkfb에서 CRUD) — item_id NULL 허용 + 직접입력/사진 컬럼 추가