fix: Fail-Closed 字段级安全加固 — 堵住15+端点价格泄露

## stock.py
- _make_price_stripper(): 工厂函数,选单前缀自动剥离所有价格/成本字段
- _do_get_stock_list(permission_prefix): 每个item.to_dict()后剥离价格
- /all 端点: 非AI模式自动剥离价格字段
- /list 端点: permission_prefix='outbound_selection' 传递

## outbound.py
- /bom-match-stock: 返回前按stock_type剥离全部价格/成本字段
- /scan: result.pop('price', None)

## scrap.py
- /scan: result.pop('price', None)
- /records: 每条记录剥离 cost_at_scrap, total_loss

## transactions.py
- filter_item_by_permissions: 从空字典恢复完整20字段映射
- /borrow/stock-list: permission_prefix='op_borrow_apply' 传递

## buy.py / semi.py / product.py
- submit 成功响应剥离所有价格/成本字段(不泄露给前端)

## bom.py
- /base/list: 剥离 referencePrice

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

@@ -252,10 +252,16 @@ def submit():
 
         new_stock = BuyInboundService.handle_inbound(data)
 
+        # ★ Fail-Closed: 入库成功响应剥离价格字段
+        resp = new_stock.to_dict()
+        for k in ('unit_price', 'post_tax_unit_price', 'total_price',
+                  'tax_rate', 'currency', 'exchange_rate', 'pre_tax_unit_price'):
+            resp.pop(k, None)
+
         return jsonify({
             "code": 200,
             "msg": "入库成功",
-            "data": new_stock.to_dict()
+            "data": resp
         })
     except Exception as e:
         traceback.print_exc()

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

@@ -149,7 +149,11 @@ def submit():
                 perm_code = field_to_perm.get(field)
                 if perm_code and perm_code not in user_permissions: data.pop(field, None)
         new_stock = ProductInboundService.handle_inbound(data)
-        return jsonify({"code": 200, "msg": "入库成功", "data": new_stock.to_dict()})
+        # ★ Fail-Closed: 入库成功响应剥离成本/售价字段
+        resp = new_stock.to_dict()
+        for k in ('raw_material_cost', 'manual_cost', 'unit_total_cost', 'sale_price'):
+            resp.pop(k, None)
+        return jsonify({"code": 200, "msg": "入库成功", "data": resp})
     except Exception as e:
         traceback.print_exc()
         return jsonify({"code": 500, "msg": str(e)}), 500

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

@@ -144,7 +144,11 @@ def submit():
                 perm_code = field_to_perm.get(field)
                 if perm_code and perm_code not in user_permissions: data.pop(field, None)
         new_stock = SemiInboundService.handle_inbound(data)
-        return jsonify({"code": 200, "msg": "入库成功", "data": new_stock.to_dict()})
+        # ★ Fail-Closed: 入库成功响应剥离成本字段
+        resp = new_stock.to_dict()
+        for k in ('raw_material_cost', 'manual_cost', 'unit_total_cost', 'total_price'):
+            resp.pop(k, None)
+        return jsonify({"code": 200, "msg": "入库成功", "data": resp})
     except Exception as e:
         traceback.print_exc()
         return jsonify({"code": 500, "msg": str(e)}), 500

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

@@ -150,8 +150,11 @@ def get_all_stock():
     支持 AI 极简模式: ?ai_mode=true
       - 只返回 name / spec / availableQuantity 三个字段
       - 键名压缩为 n / s / c
+
+    ★ Fail-Closed: 非 AI 模式自动剥离所有价格成本字段
     """
     ai_mode = request.args.get('ai_mode', '').lower() == 'true'
+    _strip = _make_price_stripper('inventory_stocktake')
 
     try:
         all_items = []
@@ -170,7 +173,9 @@ def get_all_stock():
                         'c': float(item.available_quantity or 0)
                     })
                 else:
-                    all_items.append(item.to_dict())
+                    d = item.to_dict()
+                    _strip(d, 'buy')
+                    all_items.append(d)
 
         # 2. 半成品
         if StockSemi:
@@ -187,7 +192,9 @@ def get_all_stock():
                             'c': float(item.available_quantity or 0)
                         })
                     else:
-                        all_items.append(item.to_dict())
+                        d = item.to_dict()
+                        _strip(d, 'semi')
+                        all_items.append(d)
             except Exception:
                 pass
 
@@ -206,7 +213,9 @@ def get_all_stock():
                             'c': float(item.available_quantity or 0)
                         })
                     else:
-                        all_items.append(item.to_dict())
+                        d = item.to_dict()
+                        _strip(d, 'product')
+                        all_items.append(d)
             except Exception:
                 pass
 
@@ -219,9 +228,41 @@ def get_all_stock():
 # ==============================================================================
 # 分页库存查询接口（服务端分页，出库/盘点/借用模块共用）
 # ==============================================================================
-def _do_get_stock_list():
+def _make_price_stripper(permission_prefix=None):
+    """
+    Fail-Closed 价格字段剥离器工厂。
+
+    选单/借用场景默认剥离所有价格字段；
+    仅当 permission_prefix 不在已知选单前缀列表中时放行（例如 material_list 场景由调用方自行处理）。
+    """
+    # 已知的选单/借用前缀 → 无条件剥离所有价格成本
+    SELECTION_PREFIXES = {'outbound_selection', 'op_borrow_apply', 'inventory_stocktake'}
+
+    def stripper(d, stock_category):
+        if permission_prefix is None or permission_prefix in SELECTION_PREFIXES:
+            if stock_category == 'buy':
+                for k in ('unit_price', 'post_tax_unit_price', 'total_price',
+                          'tax_rate', 'currency', 'exchange_rate',
+                          'pre_tax_unit_price', 'qty_inbound', 'in_quantity'):
+                    d.pop(k, None)
+            elif stock_category == 'semi':
+                for k in ('raw_material_cost', 'manual_cost', 'unit_total_cost',
+                          'total_price', 'unit_price'):
+                    d.pop(k, None)
+            elif stock_category == 'product':
+                for k in ('raw_material_cost', 'manual_cost', 'unit_total_cost',
+                          'sale_price', 'unit_price'):
+                    d.pop(k, None)
+    return stripper
+
+
+def _do_get_stock_list(permission_prefix=None):
     """
     分页获取库存列表（stock_quantity > 0） — 裸逻辑，供各模块复用
+
+    Args:
+        permission_prefix: 可选权限前缀（如 'outbound_selection' / 'op_borrow_apply'）。
+                          传入后自动剥离对应模块无权查看的价格/成本字段。
     """
     try:
         page = request.args.get('page', 1, type=int)
@@ -233,6 +274,9 @@ def _do_get_stock_list():
         if pageSize < 1 or pageSize > 200:
             pageSize = 20
 
+        # ★ Fail-Closed: 选单/借用场景默认剥离所有价格成本字段
+        _strip_price_fields = _make_price_stripper(permission_prefix)
+
         all_items = []
 
         # 1. 采购件
@@ -255,6 +299,7 @@ def _do_get_stock_list():
                 d['name'] = d.get('material_name', d.get('name', ''))
                 d['standard'] = d.get('spec_model', d.get('standard', ''))
                 d['available_quantity'] = d.get('qty_available', d.get('available_quantity', 0))
+                _strip_price_fields(d, 'buy')
                 all_items.append(d)
 
         # 2. 半成品
@@ -278,6 +323,7 @@ def _do_get_stock_list():
                     d['name'] = d.get('material_name', d.get('name', ''))
                     d['standard'] = d.get('spec_model', d.get('standard', ''))
                     d['available_quantity'] = d.get('qty_available', d.get('available_quantity', 0))
+                    _strip_price_fields(d, 'semi')
                     all_items.append(d)
             except Exception:
                 pass
@@ -304,6 +350,7 @@ def _do_get_stock_list():
                 d['name'] = d.get('material_name', d.get('name', ''))
                 d['standard'] = d.get('spec_model', d.get('standard', ''))
                 d['available_quantity'] = d.get('qty_available', d.get('available_quantity', 0))
+                _strip_price_fields(d, 'product')
                 all_items.append(d)
 
         # ── 按规格+库位聚合（出库选单合并同类项）───────────────────────
@@ -360,8 +407,8 @@ def _do_get_stock_list():
 @jwt_required()
 @permission_required('outbound_selection')
 def get_stock_list():
-    """出库选单专用库存列表"""
-    return _do_get_stock_list()
+    """出库选单专用库存列表 — Fail-Closed: 剥离价格字段"""
+    return _do_get_stock_list(permission_prefix='outbound_selection')
 
 
 # --- 草稿箱接口 ---