fix: Login.vue success路径补上this.守卫

catch块已有守卫但success路径漏了，登录成功时为undefined会崩溃

cfc-web/src/views/Login.vue

@@ -367,7 +367,11 @@ export default {
           localStorage.setItem('role', role)
           const roles = res.data.roles || [role]
           localStorage.setItem('roles', JSON.stringify(roles))
-          this.$message.success('登录成功')
+          if (this.$message) {
+            this.$message.success('登录成功')
+          } else {
+            console.log('登录成功')
+          }
           await this.$nextTick()
           this.$router.replace({ path: '/' })
         } catch (e) {