feat: 增加工龄调整津贴计算逻辑

- 在add_history函数中新增工龄调整津贴的计算逻辑，基于参加工作时间每五年进行津贴调整
- 优化历史记录的字段更新，确保包含最新的变动后时间和变动原因

main.py

@@ -304,6 +304,14 @@ def add_history(History_pd, row, promote):
     for rule in Rule_Level: 
         if row["入职时间"] < rule["start"]:
             History_pd.loc[len(History_pd),["变动后时间","变动原因"]] = [rule["start"], "工资调标"]
+    calctime = row["参加工作时间"]
+    while True:
+        calctime += relativedelta(years=1) 
+        if calctime > NOWTIME:
+            break
+        elif int(calculate_seniority(row,calctime.year)) % 5 == 0: 
+            History_pd.loc[len(History_pd),["变动后时间","变动原因"]] = \
+                [calctime,"调整津贴"]
     History_pd["身份证号码"] = row["身份证号码"]
     History_pd["姓名"] = row["姓名"]
     History_pd["工龄"] = History_pd.apply(lambda x: calculate_seniority(row, x["变动后时间"].year), axis=1)