V3.0.0 叠加客户亏损筛选，生成最终发放记录

新增功能：
- 读取1月/2月亏损表，按客户名称匹配考核数据
- 车辆考核追踪新增列：客户名称、客户是否亏损、考核应发、最终发放、未发放原因
- 月汇总新增亏损筛选section：亏损拦截/未匹配/最终发放/汇总
- 3月无亏损表，全部正常发放
- 亏损拦截不补发

规则：客户亏损→该客户下所有车不发；未匹配→标注待人工确认

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

calc_engine.py

@@ -179,6 +179,47 @@ VEHICLE_TARGET_MAP = {
     ('现代氢能科技（广州）有限公司', '4.5吨货车'): ('恒运50辆4.5T普货', 5000, 260),
 }
 
+def read_loss_data(month):
+    """读取亏损表，返回 {客户名称: '是'/'否'} 字典。无亏损表返回None"""
+    import os
+    fp = f'{month}月.xlsx'
+    if not os.path.exists(fp):
+        return None
+
+    wb = openpyxl.load_workbook(fp, data_only=True)
+    ws = wb[wb.sheetnames[0]]
+    h = [c.value for c in next(ws.iter_rows(min_row=1, max_row=1))]
+
+    # 1月: 列名"项目","1月是否亏损"
+    # 2月: 列名"客户名称","是否亏损"
+    client_col = None; loss_col = None
+    for i, col_name in enumerate(h):
+        if col_name and ('项目' in str(col_name) or '客户' in str(col_name)):
+            client_col = i
+        if col_name and '亏损' in str(col_name):
+            loss_col = i
+
+    if client_col is None or loss_col is None:
+        wb.close()
+        return None
+
+    result = {}
+    for row in ws.iter_rows(min_row=2, values_only=True):
+        client = row[client_col]
+        loss = row[loss_col]
+        if client:
+            result[str(client).strip()] = str(loss).strip() if loss else ''
+    wb.close()
+    return result
+
+def get_vehicle_client_map(D):
+    """从考核源数据构建 {车牌号: 客户名称} 映射（取最新月的客户名）"""
+    plate_client = {}
+    for m in sorted(D.keys()):
+        for r in D[m]:
+            plate_client[r['车牌号']] = r.get('客户名称', '')
+    return plate_client
+
 def read_master_vehicles(fp='里程任务考核_Q1汇总.xlsx'):
     """从现有Q1汇总文件读取全量车辆台账"""
     wb = openpyxl.load_workbook(fp, data_only=True)