feat(admin): 건조시럽 환산계수 관리 페이지 추가

- /admin/drysyrup 페이지 구현
- GET /api/drug-info/drysyrup 전체 목록 API
- DELETE /api/drug-info/drysyrup/<sung_code> 삭제 API
- 검색, CRUD, 통계 카드 기능

backend/app.py

@@ -4145,6 +4145,133 @@ def api_drysyrup_update(sung_code):
         return jsonify({'success': False, 'error': str(e)}), 500
 
 
+@app.route('/api/drug-info/drysyrup', methods=['GET'])
+def api_drysyrup_list():
+    """
+    건조시럽 전체 목록 조회 API
+    
+    Query params:
+        q: 검색어 (성분명/제품명 검색)
+    
+    Returns:
+        { "success": true, "data": [...] }
+    """
+    try:
+        session = db_manager.get_postgres_session()
+        if session is None:
+            return jsonify({
+                'success': False,
+                'error': 'PostgreSQL 연결 실패',
+                'data': []
+            })
+        
+        search_query = request.args.get('q', '').strip()
+        
+        if search_query:
+            query = text("""
+                SELECT 
+                    idx,
+                    ingredient_code,
+                    ingredient_name,
+                    product_name,
+                    conversion_factor,
+                    post_prep_amount,
+                    main_ingredient_amt,
+                    storage_conditions,
+                    expiration_date
+                FROM drysyrup
+                WHERE 
+                    ingredient_name ILIKE :search 
+                    OR product_name ILIKE :search
+                    OR ingredient_code ILIKE :search
+                ORDER BY ingredient_name, product_name
+            """)
+            rows = session.execute(query, {'search': f'%{search_query}%'}).fetchall()
+        else:
+            query = text("""
+                SELECT 
+                    idx,
+                    ingredient_code,
+                    ingredient_name,
+                    product_name,
+                    conversion_factor,
+                    post_prep_amount,
+                    main_ingredient_amt,
+                    storage_conditions,
+                    expiration_date
+                FROM drysyrup
+                ORDER BY ingredient_name, product_name
+            """)
+            rows = session.execute(query).fetchall()
+        
+        data = []
+        for row in rows:
+            data.append({
+                'idx': row[0],
+                'sung_code': row[1],
+                'ingredient_name': row[2],
+                'product_name': row[3],
+                'conversion_factor': float(row[4]) if row[4] is not None else None,
+                'post_prep_amount': row[5],
+                'main_ingredient_amt': row[6],
+                'storage_conditions': row[7],
+                'expiration_date': row[8]
+            })
+        
+        return jsonify({
+            'success': True,
+            'data': data,
+            'count': len(data)
+        })
+        
+    except Exception as e:
+        logging.error(f"건조시럽 목록 조회 오류: {e}")
+        return jsonify({
+            'success': False,
+            'error': str(e),
+            'data': []
+        }), 500
+
+
+@app.route('/api/drug-info/drysyrup/<sung_code>', methods=['DELETE'])
+def api_drysyrup_delete(sung_code):
+    """
+    건조시럽 삭제 API
+    """
+    try:
+        session = db_manager.get_postgres_session()
+        if session is None:
+            return jsonify({'success': False, 'error': 'PostgreSQL 연결 실패'}), 500
+        
+        # 존재 여부 확인
+        check_query = text("SELECT 1 FROM drysyrup WHERE ingredient_code = :sung_code")
+        existing = session.execute(check_query, {'sung_code': sung_code}).fetchone()
+        
+        if not existing:
+            return jsonify({'success': False, 'error': '존재하지 않는 성분코드'}), 404
+        
+        # 삭제
+        delete_query = text("DELETE FROM drysyrup WHERE ingredient_code = :sung_code")
+        session.execute(delete_query, {'sung_code': sung_code})
+        session.commit()
+        
+        return jsonify({'success': True, 'message': '삭제 완료'})
+        
+    except Exception as e:
+        logging.error(f"건조시럽 삭제 오류 (SUNG_CODE={sung_code}): {e}")
+        try:
+            session.rollback()
+        except:
+            pass
+        return jsonify({'success': False, 'error': str(e)}), 500
+
+
+@app.route('/admin/drysyrup')
+def admin_drysyrup():
+    """건조시럽 환산계수 관리 페이지"""
+    return render_template('admin_drysyrup.html')
+
+
 # ==================== 입고이력 API ====================
 
 @app.route('/api/drugs/<drug_code>/purchase-history')