chore(站内信): 消息页、后台空壳页、两个接口和 message 表一起下线

历史上一共 6 条站内信（最后一条 2025-06），发信接口两代前端都没接过，后台页面只有一句
「未完待续」，OJ2 顶栏也没有入口。

0033 是 DROP TABLE，部署要显式放行：OJ2_ALLOW_DESTRUCTIVE=1 docker/deploy.sh，
或 CI 手工触发时勾 allow_destructive。

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/web/src/admin/communication/messages.vue

@@ -1,2 +0,0 @@
-<template>未完待续</template>
-<script lang="ts" setup></script>

apps/web/src/oj/api.ts

@@ -57,7 +57,6 @@ import type {
   Announcement,
   AnnouncementListItem,
   Profile,
-  Message,
   SubmissionListItem,
   Exercise,
   ProblemDetail,
@@ -380,13 +379,6 @@ export function getAnnouncement(id: number) {
   return api.get<Announcement>(`announcements/${id}`)
 }
 
-export function getMessageList(offset = 0, limit = 10) {
-  // language 的收窄同 getSubmissions，见那里的说明
-  return api.get<{ results: Message[]; total: number }>("messages", {
-    params: { limit, offset },
-  })
-}
-
 export function getReaction(problemID: number) {
   return api.get<ReactionState>(`problems/${problemID}/reaction`)
 }

apps/web/src/oj/user/message.vue

@@ -1,78 +0,0 @@
-<template>
-  <div class="oj-page message-page">
-    <h2>消息</h2>
-    <n-list v-if="messages.length">
-      <n-list-item :style="{ overflow: 'auto' }" v-for="(item, index) in messages" :key="index">
-        <n-flex size="large" vertical>
-          <n-flex align="center">
-            <div>发送时间</div>
-            <div>{{ parseTime(item.createTime, "YYYY年M月D日 HH:mm:ss") }}</div>
-            <div>发送者</div>
-            <div>{{ item.sender.username }}</div>
-          </n-flex>
-          <n-flex align="center">
-            <div>题目序号</div>
-            <n-button
-              text
-              type="info"
-              @click="router.push('/problem/' + item.submission.problemDisplayId)"
-            >
-              {{ item.submission.problemDisplayId }}
-            </n-button>
-            <n-text :type="JUDGE_STATUS[item.submission.result]['type']">
-              {{ JUDGE_STATUS[item.submission.result]["name"] }}
-            </n-text>
-            <Copy :value="item.submission.code" />
-          </n-flex>
-          <n-code
-            :language="LANGUAGE_FORMAT_VALUE[item.submission.language]"
-            :code="item.submission.code"
-            show-line-numbers
-          />
-          <div v-html="item.message"></div>
-        </n-flex>
-      </n-list-item>
-    </n-list>
-    <n-empty v-else description="没有消息" style="margin: 48px 0"></n-empty>
-    <Pagination v-model:limit="query.limit" v-model:page="query.page" :total="total" />
-  </div>
-</template>
-<script lang="ts" setup>
-import { getMessageList } from "oj/api"
-import { JUDGE_STATUS, LANGUAGE_FORMAT_VALUE } from "utils/constants"
-import Copy from "shared/components/Copy.vue"
-import Pagination from "shared/components/Pagination.vue"
-import { parseTime } from "utils/functions"
-import type { Message } from "utils/types"
-
-const router = useRouter()
-const messages = ref<Message[]>([])
-const total = ref(0)
-
-const query = reactive({
-  limit: 10,
-  page: 1,
-})
-
-async function listMessages() {
-  const offset = (query.page - 1) * query.limit
-  const res = await getMessageList(offset, query.limit)
-  total.value = res.total
-  messages.value = res.results
-}
-
-onMounted(listMessages)
-watch(query, listMessages, { deep: true })
-</script>
-
-<style scoped>
-.message-page h2 {
-  margin: 0 0 8px;
-  font-size: var(--oj-fs-title);
-}
-
-.message-page :deep(.n-list-item) {
-  padding: 20px 0;
-  font-size: var(--oj-fs-sec);
-}
-</style>

apps/web/src/routes.ts

@@ -111,11 +111,6 @@ export const ojs: RouteRecordRaw = {
       component: () => import("oj/achievement/index.vue"),
       meta: { requiresAuth: true },
     },
-    {
-      path: "message",
-      component: () => import("oj/user/message.vue"),
-      meta: { requiresAuth: true },
-    },
     {
       path: "learn",
       name: "learn home",
@@ -268,12 +263,6 @@ export const admins: RouteRecordRaw = {
       props: true,
       meta: { requiresSuperAdmin: true },
     },
-    {
-      path: "message/list",
-      name: "admin message list",
-      component: () => import("admin/communication/messages.vue"),
-      meta: { requiresSuperAdmin: true },
-    },
     {
       path: "tutorial/list",
       name: "admin tutorial list",

apps/web/src/utils/types.ts

@@ -7,8 +7,6 @@ import type {
   RankProfile,
   SessionUser,
   UserProfile,
-  EmbeddedSubmission as ContractEmbeddedSubmission,
-  Message as ContractMessage,
   ProblemDifficulty,
   JudgeStatus,
   AstRules,
@@ -245,12 +243,6 @@ export type Submission = Omit<SubmissionDetail, "result"> & {
   result: SUBMISSION_RESULT
 }
 
-/**
- * 站内信里嵌的提交：problem 是展示题号而非数字 id，且不含 info / ip / contestId。
- * 契约里已经窄化好了（`embeddedSubmissionSchema`），这里不再重复 Omit + 增补。
- */
-export type EmbeddedSubmission = ContractEmbeddedSubmission
-
 export type SubmissionListItem = ContractSubmissionListItem
 
 export interface SubmissionListPayload {
@@ -358,14 +350,6 @@ export type {
 /** 后台编辑表单：请求体 + id（新建时填 0，提交前由 api 层剥掉） */
 export type AnnouncementEdit = CreateAnnouncementRequest & { id: number }
 
-/**
- * 站内信。**直接取契约** —— 原来这里把 `submission` 换成前端窄化过的
- * `EmbeddedSubmission`，但那个窄化已经搬进 `embeddedSubmissionSchema`
- * （statisticInfo / language 在契约里不再是 unknown），两者双向可赋值、
- * 完全等价，这层 Omit 已经没有内容。
- */
-export type Message = ContractMessage
-
 /**
  * 题目表情。三个类型都直接取自契约 —— 语义 key 必须与后端 reaction/models.py
  * 的 ReactionType 一致（见根 CLAUDE.md），手抄一份迟早对不上。