feat(首页): 登录后不再弹「登录速报」，上次来做了什么、哪道还没做对放进首页，带「接着做」

- 新接口 /me/last-visit：上次登录到这次登录之间的题库提交，不调 AI（原来要同步等模型最长 60 秒弹框才出来）
- 班里今天在做时让位给班里卡，只在卡底留一句；班里那天就是上次来那天时两张卡合成一张
- 第一次登录说「欢迎来到判题狗」，隔了 30 天以上说「好久不见」
- 删掉弹框、store 和 /ai/login-summary

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

apps/web/src/shared/api.ts

@@ -1,4 +1,4 @@
-import type { LoginSummary, Quote, WebsiteConfig } from "@oj2/contract"
+import type { Quote, WebsiteConfig } from "@oj2/contract"
 import api from "utils/api"
 import { contractDeferred } from "utils/contract"
 import type { Profile, Tag } from "utils/types"
@@ -43,14 +43,10 @@ export function getClassUsernames(classroom: string) {
   return api.get<string[]>(`classes/${encodeURIComponent(classroom)}/usernames`)
 }
 
-// 下面两个是启动就要调的（config / loginSummary 两个 store），所以放在 shared 而不是
+// 下面这个是启动就要调的（config store），所以放在 shared 而不是
 // oj/api.ts：oj/api.ts 同步 import 了题目详情、提交详情两个 schema（它们的契约闸门必须
 // 同步，submissionDetailSchema 里有 `.catch()`，放行原文和解析结果不等价），入口一旦
 // 引到它，zod 整个就进了首屏包。
 export function getWebsiteConfig() {
   return api.get<WebsiteConfig>("site")
 }
-
-export function getAILoginSummary() {
-  return api.get<LoginSummary>("ai/login-summary")
-}

apps/web/src/shared/components/Login.vue

@@ -7,10 +7,8 @@ import { storeToRefs } from "pinia"
 import { useAuthModalStore } from "../store/authModal"
 import { useConfigStore } from "../store/config"
 import { useUserStore } from "../store/user"
-import { useLoginSummaryStore } from "../store/loginSummary"
 
 const userStore = useUserStore()
-const loginSummaryStore = useLoginSummaryStore()
 const configStore = useConfigStore()
 const authStore = useAuthModalStore()
 
@@ -142,10 +140,8 @@ function submit() {
         storage.set(STORAGE_KEY.LOGIN_CLASS, form.value.class)
       }
       authStore.closeLoginModal()
+      // 「上次登录以来」不再弹框，拆进了首页的「上次来」卡（/me/last-visit）
       await userStore.getMyProfile()
-      // 登录后弹「上次登录以来」的学情小结。移植时漏掉了这一行，
-      // LoginSummaryModal 一直挂在 layout 里但没人触发，整条链路等于死的
-      loginSummaryStore.open()
     }
   })
 }

apps/web/src/shared/components/LoginSummaryModal.vue

@@ -1,70 +0,0 @@
-<script setup lang="ts">
-import { useBreakpoints } from "shared/composables/breakpoints"
-import { useLoginSummaryStore } from "shared/store/loginSummary"
-import { parseTime } from "utils/functions"
-
-// md-editor-v3 按需加载：这个弹框挂在默认布局上，静态 import 的话首页每次都要多拉
-// ~160KB JS + ~76KB CSS，而 AI 分析只在登录后、且期间提交够 3 次才有
-const MdPreview = defineAsyncComponent(() => import("./LoginSummaryPreview.vue"))
-
-const loginSummaryStore = useLoginSummaryStore()
-const { isDesktop } = useBreakpoints()
-
-const lastLoginTime = computed(() => {
-  const summary = loginSummaryStore.summary
-  if (!summary?.start) {
-    return ""
-  }
-  return parseTime(summary.start, "YYYY-MM-DD HH:mm")
-})
-
-const hasAnalysis = computed(() => !!loginSummaryStore.analysis)
-</script>
-
-<template>
-  <n-modal
-    v-model:show="loginSummaryStore.show"
-    preset="card"
-    title="登录速报"
-    style="width: min(760px, 92vw)"
-  >
-    <n-spin :show="loginSummaryStore.loading" size="small">
-      <n-flex vertical size="large">
-        <n-text v-if="lastLoginTime">上次登录时间：{{ lastLoginTime }}</n-text>
-        <n-grid :cols="isDesktop ? 3 : 1" :x-gap="16" :y-gap="16">
-          <n-gi>
-            <n-statistic
-              label="新增题目"
-              :value="loginSummaryStore.summary?.newProblemCount ?? 0"
-            />
-          </n-gi>
-          <n-gi>
-            <n-statistic
-              label="提交次数"
-              :value="loginSummaryStore.summary?.submissionCount ?? 0"
-            />
-          </n-gi>
-          <n-gi>
-            <n-statistic label="AC 次数" :value="loginSummaryStore.summary?.acceptedCount ?? 0" />
-          </n-gi>
-          <n-gi>
-            <n-statistic label="AC 题目数" :value="loginSummaryStore.summary?.solvedCount ?? 0" />
-          </n-gi>
-          <n-gi>
-            <n-statistic
-              label="流程图提交"
-              :value="loginSummaryStore.summary?.flowchartSubmissionCount ?? 0"
-            />
-          </n-gi>
-        </n-grid>
-
-        <n-divider>AI 分析</n-divider>
-        <n-alert v-if="loginSummaryStore.analysisError" type="warning" :show-icon="false">
-          {{ loginSummaryStore.analysisError }}
-        </n-alert>
-        <MdPreview v-if="hasAnalysis" :model-value="loginSummaryStore.analysis" />
-        <n-empty v-else description="期间提交数少于 3 次，暂不生成 AI 分析" />
-      </n-flex>
-    </n-spin>
-  </n-modal>
-</template>

apps/web/src/shared/components/LoginSummaryPreview.vue

@@ -1,10 +0,0 @@
-<script setup lang="ts">
-import { MdPreview } from "md-editor-v3"
-import "md-editor-v3/lib/preview.css"
-
-defineProps<{ modelValue: string }>()
-</script>
-
-<template>
-  <MdPreview :model-value="modelValue" />
-</template>

apps/web/src/shared/layout/default.vue

@@ -3,7 +3,6 @@ import Beian from "../components/Beian.vue"
 import Header from "../components/Header.vue"
 import Login from "../components/Login.vue"
 import Signup from "../components/Signup.vue"
-import LoginSummaryModal from "../components/LoginSummaryModal.vue"
 import AchievementToast from "../components/AchievementToast.vue"
 import { useAchievementStore } from "shared/store/achievement"
 import { useUserStore } from "shared/store/user"
@@ -46,7 +45,6 @@ watch(
     </n-layout-content>
     <Login />
     <Signup />
-    <LoginSummaryModal />
     <AchievementToast />
     <Beian />
   </n-layout>

apps/web/src/shared/store/loginSummary.ts

@@ -1,67 +0,0 @@
-import type { LoginSummary as ContractLoginSummary } from "@oj2/contract"
-import { getAILoginSummary } from "shared/api"
-
-type LoginSummary = ContractLoginSummary["summary"]
-
-export const useLoginSummaryStore = defineStore("loginSummary", () => {
-  const show = ref(false)
-  const loading = ref(false)
-  const summary = ref<LoginSummary | null>(null)
-  const analysis = ref("")
-  const analysisError = ref("")
-
-  function shouldShowSummary(nextSummary: LoginSummary | null) {
-    if (!nextSummary) {
-      return false
-    }
-    const values = [
-      nextSummary.newProblemCount,
-      nextSummary.submissionCount,
-      nextSummary.acceptedCount,
-      nextSummary.solvedCount,
-      nextSummary.flowchartSubmissionCount,
-    ]
-    const zeroCount = values.filter((value) => value === 0).length
-    return zeroCount < Math.floor(values.length / 2) + 1
-  }
-
-  async function fetchSummary() {
-    loading.value = true
-    analysis.value = ""
-    analysisError.value = ""
-    try {
-      const res = await getAILoginSummary()
-      summary.value = res.summary
-      analysis.value = res.analysis || ""
-      analysisError.value = res.analysisError || ""
-    } catch {
-      analysisError.value = "获取登录统计失败，请稍后再试"
-    } finally {
-      loading.value = false
-    }
-  }
-
-  async function open() {
-    await fetchSummary()
-    if (!summary.value && analysisError.value) {
-      show.value = true
-      return
-    }
-    show.value = shouldShowSummary(summary.value)
-  }
-
-  function close() {
-    show.value = false
-  }
-
-  return {
-    show,
-    loading,
-    summary,
-    analysis,
-    analysisError,
-    fetchSummary,
-    open,
-    close,
-  }
-})