fix(题目): 修掉代码审查查出的几处问题——流程图拿到的徽章不弹、点评弹窗读失败时关不掉等

- 流程图画到 A / S 拿到的题单徽章、成就原来不弹：流程图那条 WebSocket 只认评分完成 / 失败，
  成就消息被丢掉了，要等下次换路由拉 pending 才出来
- 强制点评弹窗读不出点评、或者一直交不上时，「下一题 / 继续」按钮也给出来：原来弹窗关不掉，
  只能按浏览器后退；拦下换题时就记上「继续」，按钮文字不会写错
- 「放回编辑器」走正常的换语言路子（画流程图时切回代码编辑器、读那门语言的草稿）；
  这道题已经不收的语言（0020 摘掉的 Java / JS / Go）置灰，只能复制
- 举着手时刚交对、1.5 秒内点下一题：原来「确定要换题吗」要问两遍（点评完再问一次），
  现在同意过的那个地址不再问
- 课堂看板上评分中、评失败的流程图不再算「尝试过」，和学生的课堂条一个口径；
  新加的流程图查询和其他查询并行，不再多等一轮数据库
- 课堂条的数据只认最后发出的那次请求：进页面那次后到的话会把刚做完的那道盖回「没做」
- 「A / S 算做完」收进契约，前后端只留一份；协作中老师的判断统一用 useTeacherCollab；
  几处放错位置、说法过时的注释

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

apps/api/src/flowchart/grade.ts

@@ -9,13 +9,3 @@ export function gradeForScore(score: number) {
   if (score >= 70) return "B"
   return "C"
 }
-
-/**
- * 画到这两档算这道题做完：题单进度、课堂条、「你画的流程图」都按它
- * （设计文档 2026-09-28-problem-page-redesign 第 3 节决定 4、6）
- */
-export const FLOWCHART_PASS_GRADES = ["S", "A"]
-
-export function isFlowchartPass(grade: string | null | undefined) {
-  return grade === "S" || grade === "A"
-}

apps/api/src/flowchart/run.ts

@@ -1,4 +1,4 @@
-import type { FlowchartUpdate } from "@oj2/contract"
+import { isFlowchartPass, type FlowchartUpdate } from "@oj2/contract"
 import { eq } from "drizzle-orm"
 
 import { config } from "../config"
@@ -6,7 +6,7 @@ import { db, schema } from "../db"
 import { publishFlowchartUpdate } from "../events"
 import { completeChat } from "../services/ai"
 import { recordSolvedAndNotify } from "../services/problemset"
-import { gradeForScore, isFlowchartPass } from "./grade"
+import { gradeForScore } from "./grade"
 import type { FlowchartJobData } from "./job"
 
 function evaluationPrompt(problem: typeof schema.problem.$inferSelect) {

apps/api/src/routes/classroom.ts

@@ -10,6 +10,7 @@ import {
   type ClassComparisonResponse,
   type ClassRankItem,
   type ClassUserRank,
+  FLOWCHART_PASS_GRADES,
 } from "@oj2/contract"
 import { and, desc, eq, gte, inArray, isNotNull, isNull, like, lte, sql } from "drizzle-orm"
 import { Hono } from "hono"
@@ -17,7 +18,6 @@ import { Hono } from "hono"
 import { requireAuth, requireTeacher, type AppEnv } from "../auth/middleware"
 import { db, schema } from "../db"
 import { failure, parseBody, success } from "../http"
-import { FLOWCHART_PASS_GRADES } from "../flowchart/grade"
 import { JudgeStatus } from "../judge/status"
 import { calendarDay, dayStart, localTime } from "../time"
 import { queryInteger, rounded } from "./helpers"
@@ -309,43 +309,45 @@ classroomRoutes.get("/me/class-activity", requireAuth, async (c) => {
 
   const lesson = await classLessonProblems(user.className, CLASS_ACTIVITY_LOOKBACK_DAYS)
   const ids = lesson.problems.map((problem) => problem.id)
-  const mine = ids.length
-    ? await db
-        .select({
-          problemId: schema.submission.problemId,
-          accepted: sql<boolean>`bool_or(${inArray(schema.submission.result, SOLVED_RESULTS)})`,
-        })
-        .from(schema.submission)
-        .where(
-          and(
-            eq(schema.submission.userId, user.id),
-            inArray(schema.submission.problemId, ids),
-            isNull(schema.submission.contestId),
-          ),
-        )
-        .groupBy(schema.submission.problemId)
-    : []
+  // 代码提交和流程图提交两张表，互不依赖，一起查
+  const [mine, drawn] = await Promise.all([
+    ids.length
+      ? db
+          .select({
+            problemId: schema.submission.problemId,
+            accepted: sql<boolean>`bool_or(${inArray(schema.submission.result, SOLVED_RESULTS)})`,
+          })
+          .from(schema.submission)
+          .where(
+            and(
+              eq(schema.submission.userId, user.id),
+              inArray(schema.submission.problemId, ids),
+              isNull(schema.submission.contestId),
+            ),
+          )
+          .groupBy(schema.submission.problemId)
+      : [],
+    // 流程图作业：画到 A / S 也算做完（设计文档 2026-09-28-problem-page-redesign 第 3 节决定 6）。
+    // 有的题流程图交了几百次、代码个位数，只看代码提交的话，这些学生在课堂条上永远是「没做」
+    ids.length
+      ? db
+          .select({
+            problemId: schema.flowchartSubmission.problemId,
+            passed: sql<boolean>`bool_or(${inArray(schema.flowchartSubmission.aiGrade, [...FLOWCHART_PASS_GRADES])})`,
+          })
+          .from(schema.flowchartSubmission)
+          .where(
+            and(
+              eq(schema.flowchartSubmission.userId, user.id),
+              inArray(schema.flowchartSubmission.problemId, ids),
+              // 只数评完了的：评分中、评失败的那次不算「做过」
+              eq(schema.flowchartSubmission.status, 2),
+            ),
+          )
+          .groupBy(schema.flowchartSubmission.problemId)
+      : [],
+  ])
   const mineById = new Map(mine.map((row) => [row.problemId, row.accepted]))
-
-  // 流程图作业：画到 A / S 也算做完（设计文档 2026-09-28-problem-page-redesign 第 3 节决定 6）。
-  // 有的题流程图交了几百次、代码个位数，只看代码提交的话，这些学生在课堂条上永远是「没做」
-  const drawn = ids.length
-    ? await db
-        .select({
-          problemId: schema.flowchartSubmission.problemId,
-          passed: sql<boolean>`bool_or(${inArray(schema.flowchartSubmission.aiGrade, FLOWCHART_PASS_GRADES)})`,
-        })
-        .from(schema.flowchartSubmission)
-        .where(
-          and(
-            eq(schema.flowchartSubmission.userId, user.id),
-            inArray(schema.flowchartSubmission.problemId, ids),
-            // 只数评完了的：评分中、评失败的那次不算「做过」
-            eq(schema.flowchartSubmission.status, 2),
-          ),
-        )
-        .groupBy(schema.flowchartSubmission.problemId)
-    : []
   for (const row of drawn) {
     mineById.set(row.problemId, (mineById.get(row.problemId) ?? false) || row.passed)
   }
@@ -462,7 +464,7 @@ classroomRoutes.get("/classroom/board", requireTeacher, async (c) => {
     .slice(-RECENT_LESSONS)
 
   const localDay = sql<string>`to_char(${localTime(schema.submission.createTime)}, 'YYYY-MM-DD')`
-  const [cells, lastSubmits, attendance] = await Promise.all([
+  const [cells, lastSubmits, attendance, drawn] = await Promise.all([
     ids.length && userIds.length
       ? db
           .select({
@@ -515,21 +517,19 @@ classroomRoutes.get("/classroom/board", requireTeacher, async (c) => {
           )
           .groupBy(schema.submission.userId)
       : [],
-  ])
-  /**
-   * 流程图作业：画到 A / S 也算这道题做完，和学生首页的课堂条同一个口径（/me/class-activity）。
-   * 有的题这节课整个班都在画流程图，只数代码提交的话，看板上满屏「没开始」
-   */
-  const drawn =
+    /**
+     * 流程图作业：画到 A / S 也算这道题做完，和学生首页的课堂条同一个口径（/me/class-activity）。
+     * 有的题这节课整个班都在画流程图，只数代码提交的话，看板上满屏「没开始」
+     */
     ids.length && userIds.length
-      ? await db
+      ? db
           .select({
             userId: schema.flowchartSubmission.userId,
             problemId: schema.flowchartSubmission.problemId,
             attempts: sql<number>`count(*) filter (where ${gte(schema.flowchartSubmission.createTime, start)})::int`,
             firstPassedAt: sql<
               string | null
-            >`min(${schema.flowchartSubmission.createTime}) filter (where ${and(eq(schema.flowchartSubmission.status, 2), inArray(schema.flowchartSubmission.aiGrade, FLOWCHART_PASS_GRADES))})`,
+            >`min(${schema.flowchartSubmission.createTime}) filter (where ${and(eq(schema.flowchartSubmission.status, 2), inArray(schema.flowchartSubmission.aiGrade, [...FLOWCHART_PASS_GRADES]))})`,
             lastAt: sql<
               string | null
             >`max(${schema.flowchartSubmission.createTime}) filter (where ${gte(schema.flowchartSubmission.createTime, start)})`,
@@ -539,10 +539,13 @@ classroomRoutes.get("/classroom/board", requireTeacher, async (c) => {
             and(
               inArray(schema.flowchartSubmission.userId, userIds),
               inArray(schema.flowchartSubmission.problemId, ids),
+              // 只数评完了的：评分中、评失败的那次不算「做过」，和 /me/class-activity 一致
+              eq(schema.flowchartSubmission.status, 2),
             ),
           )
           .groupBy(schema.flowchartSubmission.userId, schema.flowchartSubmission.problemId)
-      : []
+      : [],
+  ])
   const cellByKey = new Map(cells.map((row) => [`${row.userId}:${row.problemId}`, row]))
   const drawnByKey = new Map(drawn.map((row) => [`${row.userId}:${row.problemId}`, row]))
   const lastByUser = new Map(lastSubmits.map((row) => [row.userId, row.lastAt]))

apps/api/src/routes/submission-statistics.ts

@@ -296,19 +296,6 @@ async function astOnlyByUser(where: SQL | undefined, userIds: number[]) {
  * 快照实测 count 65ms → 0.6ms。`ks2` 这种匹配上千个账号的宽前缀退回扫表，30~50ms，
  * 和原来持平。
  */
-/**
- * 用户名**精确**匹配。usernameFilter 是「包含」，学号互相包含是常态（ks24a1 包含在 ks24a10 里），
- * 协作中老师看「这个学生」的提交时不能把别人的也捞进来。查无此人留恒假条件
- */
-export async function exactUsernameFilter(username: string) {
-  const [row] = await db
-    .select({ id: schema.user.id })
-    .from(schema.user)
-    .where(eq(schema.user.username, username))
-    .limit(1)
-  return row ? eq(schema.submission.userId, row.id) : sql`false`
-}
-
 export async function usernameFilter(username: string) {
   const like = `%${username}%`
   const users = await db
@@ -327,6 +314,19 @@ export async function usernameFilter(username: string) {
     : frozen
 }
 
+/**
+ * 用户名**精确**匹配。usernameFilter 是「包含」，学号互相包含是常态（ks24a1 包含在 ks24a10 里），
+ * 协作中老师看「这个学生」的提交时不能把别人的也捞进来。查无此人留恒假条件
+ */
+export async function exactUsernameFilter(username: string) {
+  const [row] = await db
+    .select({ id: schema.user.id })
+    .from(schema.user)
+    .where(eq(schema.user.username, username))
+    .limit(1)
+  return row ? eq(schema.submission.userId, row.id) : sql`false`
+}
+
 /**
  * 两条提交列表的题号筛选：先把题号解析成 problem.id，再按 `submission.problem_id` 筛。
  * 原来是 join problem 之后比 `lower(problem._id)`，条件落在 problem 表上，规划器只能

apps/api/src/services/problemset.ts

@@ -243,7 +243,7 @@ export async function recordSolvedProblem(
   /**
    * 做出来的那次代码提交。流程图画到 A/S 算完成时传 null：problemset_submission.submission_id
    * 外键指向代码提交表，流程图提交的 id 进不去。不影响「解锁加入题单之前的提交」——
-   * 那道闸看的是 progress_detail（routes/submission.ts 的 problemSetJoinTimes）
+   * 那道闸看的是 progress_detail（本文件下面的 problemSetJoinTimes）
    */
   submissionId: string | null,
   solvedAt: string,

apps/web/src/oj/problem/components/EditorToolbar.vue

@@ -14,6 +14,7 @@ import { NFlex } from "naive-ui"
 import SubmitCode from "./SubmitCode.vue"
 import { useProblemPageContext } from "../composables/problemPageContext"
 import { statisticsOpen, useEditorMenu } from "../composables/editorMenu"
+import { useTeacherCollab } from "../composables/teacherCollab"
 
 const SubmitFlowchart = defineAsyncComponent(() => import("./SubmitFlowchart.vue"))
 
@@ -73,14 +74,10 @@ const showHelpButton = computed(
 )
 
 /**
- * 教师端：协作就开在这道题上。接单后直接跳到题目页协作（原来是 CollabModal 弹框），
- * 所以状态和「结束协作」得摆在题目页的工具栏上 —— 也只有这一个按钮能结束，
- * 不像弹框那样按一下 Esc 就把协作关掉了。
+ * 教师正在这道题上协作：编辑器里是学生的代码。协作状态和「结束协作」在工具栏上面那条
+ * 协作条里（CollabBar）；工具栏这边禁掉语言选择、不给「写代码 / 画流程图」切换
  */
-const collabHere = computed(
-  () => collabStore.room !== null && collabStore.room.problemId === problem.value?._id,
-)
-const showCollabBar = computed(() => collabHere.value && userStore.isTeacherOrAbove)
+const showCollabBar = useTeacherCollab()
 
 /**
  * 状态全塞进按钮本身。原来旁边还挂一个 n-tag 说明排队情况，一行工具栏

apps/web/src/oj/problem/components/FlowchartResult.vue

@@ -56,7 +56,7 @@ const suggestions = computed(() =>
 )
 
 function gradeType(grade: string) {
-  if (grade === "S" || grade === "A") return "success"
+  if (isFlowchartPass(grade)) return "success"
   if (grade === "B") return "warning"
   return "error"
 }

apps/web/src/oj/problem/components/ProblemEditor.vue

@@ -12,6 +12,7 @@ import { beginEditTrace, editTraceExtensions } from "oj/problem/utils/editTrace"
 import { errorMarkExtensions } from "oj/problem/utils/errorMark"
 import EditorToolbar from "./EditorToolbar.vue"
 import { useDraftKey } from "../composables/draftKey"
+import { useTeacherCollab } from "../composables/teacherCollab"
 import CollabBar from "./CollabBar.vue"
 import { useFlowchartStore } from "oj/store/flowchart"
 
@@ -39,7 +40,7 @@ const collabHere = computed(
 )
 
 /** 协作中的教师：编辑器里是学生的代码，不是他自己的 */
-const teacherCollab = computed(() => collabHere.value && collabStore.isTeacher)
+const teacherCollab = useTeacherCollab()
 
 /** 教师接单前自己选的语言，协作结束后连同草稿一起还原 */
 let teacherLanguageBefore: LANGUAGE | null = null

apps/web/src/oj/problem/components/ProblemReaction.vue

@@ -347,7 +347,14 @@ function sectorAriaLabel(index: number) {
     </div>
 
     <p v-if="submitFailed" class="error">没记上，再点一次</p>
-    <div v-if="state === 'results' && $slots.after" class="after">
+    <!--
+      强制弹窗关不掉，这个插槽（「下一题 / 继续」）是唯一的出口：读不出点评、交点评失败时也得给，
+      不能把学生关在弹窗里（设计文档第 7 节：接口出错时不能把学生卡住）
+    -->
+    <div
+      v-if="(state === 'results' || state === 'failed' || submitFailed) && $slots.after"
+      class="after"
+    >
       <slot name="after" />
     </div>
   </section>

apps/web/src/oj/problem/components/ProblemSubmission.vue

@@ -1,6 +1,7 @@
 <script lang="ts" setup>
 import { getRankOfProblem, getSubmission, getSubmissions } from "oj/api"
 import { useCodeStore } from "oj/store/code"
+import { useProblemStore } from "oj/store/problem"
 import Pagination from "shared/components/Pagination.vue"
 import SubmissionResultTag from "shared/components/SubmissionResultTag.vue"
 import { useCollabStore } from "shared/store/collab"
@@ -22,6 +23,7 @@ import { useTeacherCollab } from "../composables/teacherCollab"
 
 const userStore = useUserStore()
 const codeStore = useCodeStore()
+const problemStore = useProblemStore()
 const collabStore = useCollabStore()
 const ctx = useProblemPageContext()
 const route = useRoute()
@@ -139,11 +141,22 @@ function loadedOf(id: string): Loaded | null {
   return value && typeof value === "object" ? value : null
 }
 
-function putBack(id: string) {
+/** 这道题现在还收不收那次提交的语言（0020 从题目里摘掉了 Java / JS / Go，老提交还在） */
+function canPutBack(id: string) {
   const loaded = loadedOf(id)
-  if (!loaded) return
+  return !!loaded && problemStore.codeLanguages.some((language) => language === loaded.language)
+}
+
+async function putBack(id: string) {
+  const loaded = loadedOf(id)
+  if (!loaded || !canPutBack(id)) return
+  // 语言不一样就先按正常的路子切过去（存语言偏好、读那门语言的草稿；画流程图时切回代码编辑器），
+  // 等编辑器切完再放代码 —— 直接改 codeStore 的语言会绕过这些，草稿存错地方
+  if (codeStore.code.language !== loaded.language) {
+    problemStore.switchLanguage(loaded.language)
+    await nextTick()
+  }
   // 同一个编辑器里 dispatch 一次整段替换，CodeMirror 的历史记着它，Ctrl+Z 能撤回
-  codeStore.setLanguage(loaded.language)
   codeStore.setCode(loaded.code)
   message.success("已放回编辑器，按 Ctrl+Z 可以撤回")
 }
@@ -233,6 +246,12 @@ watch(query, () => {
                 size="small"
                 type="primary"
                 secondary
+                :disabled="!canPutBack(row.id)"
+                :title="
+                  canPutBack(row.id)
+                    ? undefined
+                    : `这道题现在不收 ${LANGUAGE_SHOW_VALUE[loadedOf(row.id)!.language]} 了，只能复制`
+                "
                 @click="putBack(row.id)"
               >
                 放回编辑器

apps/web/src/oj/problem/components/SubmissionEffects.vue

@@ -43,6 +43,9 @@ const commentPanel = ref(false)
 const reviewOwed = ref(false)
 let reviewChecking = false
 let navigationAfterReview: string | null = null
+// navigationAfterReview 是普通变量（守卫里改，不需要触发渲染），弹窗按钮的文案（「继续」）
+// 要一个响应式的影子：拦下的那一刻就记上，点评读不出来、交不上时按钮也得写对
+const navigationAfterReviewShown = ref(false)
 
 async function openReview() {
   if (reviewChecking) return
@@ -67,6 +70,7 @@ function settleReview() {
   reviewOwed.value = false
   const target = navigationAfterReview
   navigationAfterReview = null
+  navigationAfterReviewShown.value = false
   if (target) router.push(target)
 }
 
@@ -86,9 +90,6 @@ const reviewed = ref(false)
 const continueButton = useTemplateRef<{ $el: HTMLElement }>("continueButton")
 const lessonStore = useLessonStore()
 
-// navigationAfterReview 是普通变量（守卫里改，不需要触发渲染），按钮文案要一个响应式的影子
-const navigationAfterReviewShown = ref(false)
-
 /** 题目名中位 7 字、最长 33 字，按钮里放不下那么长的 */
 const shortTitle = (title: string) => (title.length > 14 ? `${title.slice(0, 13)}…` : title)
 
@@ -106,7 +107,6 @@ const continueAction = computed(() => {
 
 async function onReviewed() {
   reviewed.value = true
-  navigationAfterReviewShown.value = navigationAfterReview !== null
   await nextTick()
   continueButton.value?.$el.focus()
 }
@@ -132,6 +132,7 @@ function holdForReview(to: RouteLocationNormalized, from: RouteLocationNormalize
   if (!reviewOwed.value || commentPanel.value) return true
   if (to.name === from.name && to.params.problemID === from.params.problemID) return true
   navigationAfterReview = to.fullPath
+  navigationAfterReviewShown.value = true
   cancelCommentPanel()
   openReview()
   return false
@@ -167,6 +168,7 @@ watch(
     cancelCommentPanel()
     reviewOwed.value = false
     navigationAfterReview = null
+    navigationAfterReviewShown.value = false
     cancelGoToProblemSet()
   },
 )

apps/web/src/oj/problem/detail.vue

@@ -140,9 +140,19 @@ watch(
  */
 const collabStore = useCollabStore()
 const dialog = useDialog()
+/**
+ * 已经同意过要去的地方。通过之后 1.5 秒内点「下一题」：这里先问一次，接着被强制点评拦下
+ * （SubmissionEffects 的 holdForReview），评完再 push 同一个地址 —— 不记着的话会再问一遍，
+ * 第二次点「留在这道题」就成了同意换题之后又被留下
+ */
+let approvedTarget: string | null = null
 function confirmLeavingHelp(to: RouteLocationNormalized, from: RouteLocationNormalized) {
   if (collabStore.isTeacher || collabStore.helpStatus === "idle") return true
   if (to.name === from.name && to.params.problemID === from.params.problemID) return true
+  if (approvedTarget === to.fullPath) {
+    approvedTarget = null
+    return true
+  }
   const active = collabStore.helpStatus === "active"
   return new Promise<boolean>((resolve) => {
     dialog.warning({
@@ -152,7 +162,10 @@ function confirmLeavingHelp(to: RouteLocationNormalized, from: RouteLocationNorm
         : "换题之后这次举手就撤掉了，要在新的题目里重新举手。确定要换吗？",
       positiveText: "换题",
       negativeText: "留在这道题",
-      onPositiveClick: () => resolve(true),
+      onPositiveClick: () => {
+        approvedTarget = to.fullPath
+        resolve(true)
+      },
       onNegativeClick: () => resolve(false),
       onClose: () => resolve(false),
       onMaskClick: () => resolve(false),
@@ -161,6 +174,13 @@ function confirmLeavingHelp(to: RouteLocationNormalized, from: RouteLocationNorm
 }
 onBeforeRouteUpdate(confirmLeavingHelp)
 onBeforeRouteLeave(confirmLeavingHelp)
+// 到了就作废：没被点评拦下、一次就换过去的，不能留着让下次去同一道题时不再问
+watch(
+  () => route.fullPath,
+  (path) => {
+    if (path === approvedTarget) approvedTarget = null
+  },
+)
 
 // 结果页签的标题带状态图标（ResultTabLabel），n-tab-pane 的 tab 接受渲染函数
 const resultTab = () => h(ResultTabLabel)

apps/web/src/oj/store/flowchart.ts

@@ -1,7 +1,7 @@
 import { createDiscreteApi } from "naive-ui"
 import { defineStore } from "pinia"
 import { errorCode } from "utils/api"
-import type { FlowchartScores, FlowchartSubmission } from "@oj2/contract"
+import { isFlowchartPass, type FlowchartScores, type FlowchartSubmission } from "@oj2/contract"
 import type { Edge, Node } from "@vue-flow/core"
 import { getFlowchartScores, getFlowchartSubmission, submitFlowchart } from "oj/api"
 import { useProblemStore } from "oj/store/problem"
@@ -9,6 +9,8 @@ import { useSubmissionStore } from "oj/store/submission"
 import { useFlowchartWebSocket, type FlowchartEvaluationUpdate } from "shared/composables/websocket"
 import { useMyFlowchartStore } from "shared/store/myFlowchart"
 import { useUserStore } from "shared/store/user"
+import { useAchievementStore } from "shared/store/achievement"
+import type { QueuedAchievement } from "utils/types"
 
 // store 里没有组件上下文，useMessage() 拿不到，和 utils/api.ts 一样用独立的一份
 const { message } = createDiscreteApi(["message"])
@@ -26,10 +28,8 @@ export interface FlowchartEditorInstance {
   setFlowchartData: (data: { nodes: Node[]; edges: Edge[] }) => void
 }
 
-/** 画到这两档算这道题做完（后端 flowchart/grade.ts 的 FLOWCHART_PASS_GRADES） */
-export function isFlowchartPass(grade: string | null | undefined) {
-  return grade === "S" || grade === "A"
-}
+// 「A / S 算做完」的规则在契约里，前后端一份；这里转出去，组件照旧从 flowchart store 引
+export { isFlowchartPass }
 
 /**
  * 这一页上最近一次交的图走到哪了。idle = 这一页还没交过（历史分数照样有）
@@ -175,6 +175,14 @@ export const useFlowchartStore = defineStore("flowchart", () => {
   }
 
   const handleWebSocketMessage = (data: FlowchartEvaluationUpdate) => {
+    // 流程图画到 A/S 算完成之后，后端会在同一条用户通道上推题单徽章、成就（flowchart/run.ts 的
+    // recordSolvedAndNotify）。原来这里只认评分那两种，交代码的监视器又不一定开着，要等下次
+    // 换路由拉 pending 才弹。队列按 id 去重，两条连接各收一遍也只弹一次
+    const frame = data as unknown as { type: string; achievements?: QueuedAchievement[] }
+    if (frame.type === "achievement_unlocked") {
+      useAchievementStore().enqueue(frame.achievements ?? [])
+      return
+    }
     if (data.type === "flowchart_evaluation_completed") {
       settle(data.submissionId, {
         ok: true,

apps/web/src/oj/store/lesson.ts

@@ -16,19 +16,27 @@ export const useLessonStore = defineStore("lesson", () => {
   const activity = ref<ClassActivity | null>(null)
   let loadedAt = 0
   let loading: Promise<void> | null = null
+  /**
+   * 只认最后发出去的那次。进页面那次还在路上时学生就交对了：先就地标成做完、再强制重拉 ——
+   * 先发的那次要是后到，会把「做完」盖回去，「下一题」又指回刚做完的这道
+   */
+  let sequence = 0
 
   /** 没拉过或者旧了才拉；force 用在刚通过一道题之后 */
   function load(force = false) {
     if (!force && activity.value && Date.now() - loadedAt < STALE_MS) return loading
+    if (!force && loading) return loading
+    const mine = ++sequence
     loading = getClassActivity()
       .then((res) => {
+        if (mine !== sequence) return
         activity.value = res
         loadedAt = Date.now()
       })
       // 拉不到就没有课堂条，不影响做题
       .catch(() => {})
       .finally(() => {
-        loading = null
+        if (mine === sequence) loading = null
       })
     return loading
   }

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

@@ -28,8 +28,6 @@ const { isDark, toggleDark } = useDarkTransition()
  */
 const pendingHelpCount = computed(() => (collabStore.isTeacher ? collabStore.pendingCount : 0))
 
-// 从 store 中获取屏幕模式状态
-
 const names = [
   "man-with-chinese-cap-1",
   "cat-face",

packages/contract/src/flowchart.ts

@@ -73,6 +73,16 @@ export const flowchartDetailSchema = z.object({
   count: z.number().int(),
 })
 
+/**
+ * 流程图画到这两档算这道题做完：题单进度、课堂条、课堂看板、「你画的流程图」、结果页签的 ✓
+ * 都按它（设计文档 2026-09-28-problem-page-redesign 第 3 节决定 4、6）。前后端只有这一份
+ */
+export const FLOWCHART_PASS_GRADES = ["S", "A"] as const
+
+export function isFlowchartPass(grade: string | null | undefined) {
+  return (FLOWCHART_PASS_GRADES as readonly string[]).includes(grade ?? "")
+}
+
 /** 自己在一道题上评完的历次分数，早的在前；hidden = 被题单闸门藏起来的次数 */
 export const flowchartScoresSchema = z.object({
   scores: z.array(