fix: 更新拼多多暑期实习标题以增强一致性

Author: ranxi2001

_data/nav.yml

@@ -235,17 +235,17 @@ modules:
             slug: "iflytek/general-20260411"
       - name: "拼多多"
         articles:
-          - title: "暑期实习 4.12"
+          - title: "暑期实习-通用 4.12"
             slug: "pinduoduo/general-20260412"
-          - title: "暑期实习 4.26"
+          - title: "暑期实习-通用 4.26"
             slug: "pinduoduo/general-20260426"
-          - title: "暑期实习 5.17"
+          - title: "暑期实习-通用 5.17"
             slug: "pinduoduo/general-20260517"
-          - title: "数据岗 7.2"
+          - title: "暑期实习-数据岗 7.2"
             slug: "pinduoduo/data-20260702"
-          - title: "算法岗 7.2"
+          - title: "暑期实习-算法岗 7.2"
             slug: "pinduoduo/algo-20260702"
-          - title: "通用 7.19"
+          - title: "云弧计划提前批-通用 7.19"
             slug: "pinduoduo/general-20260719"
       - name: "携程"
         articles: