feat: 도매상 API 통합 및 스키마 업데이트

- wholesale 패키지 연동 (SooinSession, GeoYoungSession)
- Flask Blueprint 분리 (sooin_api.py, geoyoung_api.py)
- order_context 스키마 확장 (wholesaler_id, internal_code 등)
- 수인약품 개별 취소 기능 (cancel_item, restore_item)
- 문서 추가: WHOLESALE_API_INTEGRATION.md
- 테스트 스크립트들

backend/capture_geoyoung_api.py

@@ -0,0 +1,79 @@
+# -*- coding: utf-8 -*-
+"""지오영 API 엔드포인트 분석"""
+
+import asyncio
+from playwright.async_api import async_playwright
+
+async def capture_network():
+    async with async_playwright() as p:
+        browser = await p.chromium.launch(headless=True)
+        page = await browser.new_page()
+        
+        # 네트워크 요청 캡처
+        requests_log = []
+        
+        def log_request(request):
+            if 'geoweb' in request.url:
+                requests_log.append({
+                    'url': request.url,
+                    'method': request.method,
+                    'post_data': request.post_data
+                })
+        
+        page.on('request', log_request)
+        
+        # 로그인
+        print("로그인 중...")
+        await page.goto('https://gwn.geoweb.kr/Member/Login')
+        await page.fill('input[type="text"]', '7390')
+        await page.fill('input[type="password"]', 'trajet6640')
+        await page.click('button, input[type="submit"]')
+        await page.wait_for_load_state('networkidle')
+        print("로그인 완료")
+        
+        # 메인 페이지
+        await page.goto('https://gwn.geoweb.kr/Home/Index')
+        await page.wait_for_load_state('networkidle')
+        
+        # 검색
+        print("검색 중...")
+        search_input = await page.query_selector('input#srchText, input[name="srchText"]')
+        if search_input:
+            await search_input.fill('643104281')
+            
+        # 검색 버튼
+        search_btn = await page.query_selector('button:has-text("검색"), input[type="submit"]')
+        if search_btn:
+            await search_btn.click()
+        else:
+            await page.keyboard.press('Enter')
+            
+        await page.wait_for_timeout(3000)
+        
+        # 제품 행 클릭
+        print("제품 선택 중...")
+        rows = await page.query_selector_all('table tbody tr')
+        if rows:
+            await rows[0].click()
+            await page.wait_for_timeout(2000)
+        
+        # 담기 버튼
+        print("담기 버튼 클릭...")
+        add_btn = await page.query_selector('button:has-text("담기")')
+        if add_btn:
+            await add_btn.click()
+            await page.wait_for_timeout(3000)
+        
+        await browser.close()
+        
+        print("\n" + "="*60)
+        print("캡처된 요청들:")
+        print("="*60)
+        for r in requests_log:
+            if r['method'] == 'POST' or 'cart' in r['url'].lower() or 'order' in r['url'].lower():
+                print(f"\n[{r['method']}] {r['url']}")
+                if r['post_data']:
+                    print(f"    Data: {r['post_data'][:200]}")
+
+if __name__ == "__main__":
+    asyncio.run(capture_network())