fix: add missing imports for openpyxl and patch draft resolution in stock adjustment

inventory-backend/app/api/v1/inbound/stock.py

@@ -14,6 +14,17 @@ from app.models.inbound.stocktake import StocktakeDraft
 from app.models.transaction import TransBorrow
 from app.models.base import MaterialBase
 
+# 尝试导入半成品和成品
+try:
+    from app.models.inbound.semi import StockSemi
+except ImportError:
+    StockSemi = None
+
+try:
+    from app.models.inbound.product import StockProduct
+except ImportError:
+    StockProduct = None
+
 
 def _normalize_user_id(user_id):
     """规范化 user_id，确保是有效字符串"""
@@ -356,17 +367,22 @@ def adjust_stock():
     """
     data = request.json
     draft_id = data.get('draft_id')
+    stock_id = data.get('stock_id')  # 备用参数：通过 stock_id 查找草稿
     operator_name = data.get('operator_name', 'System')
     remark = data.get('remark', '')
 
-    if not draft_id:
-        return jsonify({"message": "draft_id 不能为空"}), 400
+    if not draft_id and not stock_id:
+        return jsonify({"message": "draft_id 或 stock_id 不能同时为空"}), 400
 
     try:
-        # 1. 获取草稿记录
-        draft = StocktakeDraft.query.get(draft_id)
+        # 1. 获取草稿记录（优先用 draft_id，否则用 stock_id）
+        draft = StocktakeDraft.query.get(draft_id) if draft_id else None
+        if not draft and stock_id:
+            # 尝试通过 stock_id 查找未处理的草稿
+            draft = StocktakeDraft.query.filter_by(stock_id=stock_id).first()
+        
         if not draft:
-            return jsonify({"message": "草稿记录不存在"}), 404
+            return jsonify({"message": f"平账失败：找不到对应的盘点草稿记录（draft_id={draft_id}, stock_id={stock_id}）"}), 404
 
         # 2. 获取库存记录
         if not draft.stock_id or not draft.source_table: