fix: resume video playback and advance linked exams with attempt controls

exam-controller.js

@@ -100,8 +100,24 @@
     }
     function settings() { return options.getSettings ? options.getSettings() : {}; }
     function manualIncomplete() { return settings().manualConfirmIncomplete !== false; }
+    function attemptPolicy() {
+      const policy = (options.getAttemptPolicy ? options.getAttemptPolicy() : root.YianAttemptPolicy?.read(doc.querySelector('app-examdetail,app-examtest,.pc_examtest'))) || {};
+      const active = settings().skipSingleAttemptQuiz !== false;
+      return { active, blocked: active && policy.blocked === true, count: policy.count == null ? null : policy.count,
+        reason: clean(policy.reason) || '仅有 1 次答题机会，已停止自动答题与交卷，请在原网页人工操作',
+        signature: active ? JSON.stringify([policy.signature || '', policy.blocked === true, policy.count == null ? null : policy.count]) : '' };
+    }
+    function blockSingleAttempt(policy) {
+      generation++; enabled = false;
+      if (['submitting', 'confirming', 'unknown'].includes(stage)) stage = 'unknown';
+      else stage = 'waiting';
+      error = policy.reason;
+      return emit({ skipSingleAttemptQuiz: policy.active, singleAttemptBlocked: true, attemptCount: policy.count,
+        requiresManualSubmission: true, message: error });
+    }
     function scopeValue(ctx, evidence, topic) {
-      return JSON.stringify([keyFor(ctx), ctx.revision, evidence.signature, topic?.courses, manualIncomplete()]);
+      const policy = attemptPolicy();
+      return JSON.stringify([keyFor(ctx), ctx.revision, evidence.signature, topic?.courses, manualIncomplete(), policy.active, policy.signature]);
     }
     function resultVisible() {
       return Array.from(doc.querySelectorAll('.exam_submited_box,.exam-result,app-exam-result,[data-exam-result]'))
@@ -156,8 +172,12 @@
     async function enable() {
       const token = ++generation, requested = context();
       enabled = false;
+      const initialPolicy = attemptPolicy();
+      if (initialPolicy.blocked) { blockSingleAttempt(initialPolicy); return false; }
       await observe();
       if (token !== generation || !sameContext(requested, context()) || !entry || ['submitting', 'confirming', 'unknown'].includes(stage) || destroyed || resultVisible()) return false;
+      const currentPolicy = attemptPolicy();
+      if (currentPolicy.blocked) { blockSingleAttempt(currentPolicy); return false; }
       if (entry.manualRequired && stage !== 'awaitingAttempt' && manualIncomplete()) {
         stage = 'waiting'; error = '网站提示存在未作答题，请在原网页手动确认交卷';
         emit({ requiresManualSubmission: true, message: error }); return false;
@@ -176,6 +196,8 @@
       if (!manualIncomplete() && entry.manualRequired) { entry.manualRequired = false; entry.confirmed = false; delete entry.submitAt; }
       scope = scopeValue(ctx, evidence, topic);
       enabled = true; stage = 'answering'; error = ''; entry.stage = stage; entry.paperSignature = evidence.signature; await persist();
+      const finalPolicy = attemptPolicy();
+      if (token === generation && finalPolicy.blocked) { blockSingleAttempt(finalPolicy); return false; }
       if (token !== generation || destroyed || !enabled || !sameContext(ctx, context()) || !context().ready || options.getTopic()?.status !== 'matched' || scope !== scopeFor(context())) {
         if (token === generation) disable('启动过程中页面、题库或任务状态已变化，请重新启动'); return false;
       }
@@ -196,6 +218,8 @@
     }
     function canClick(token, ctx, confirmation) {
       if (token !== generation || destroyed || !enabled || !sameContext(ctx, context())) return false;
+      const policy = attemptPolicy();
+      if (policy.blocked) { blockSingleAttempt(policy); return false; }
       const current = context(), topic = options.getTopic(), evidence = readPaper(doc, current, options.getSnapshot(), topic);
       const configured = Number(settings().minSubmitMinutes), minimum = Number.isFinite(configured) && configured > 0 ? configured * 60 : 360;
       const pendingTooLong = confirmation && now() - entry.submitAt > 12000;
@@ -234,6 +258,7 @@
           return emit({ message: '网站已显示考试结果', submitted: true, requiresManualSubmission: false });
         }
         const topic = options.getTopic(), evidence = readPaper(doc, ctx, options.getSnapshot(), topic);
+        const policy = attemptPolicy();
         const elapsedSeconds = Math.max(0, (now() - entry.startedAt) / 1000);
         const configured = Number(settings().minSubmitMinutes);
         const minimum = Number.isFinite(configured) && configured > 0 ? configured * 60 : 360;
@@ -243,8 +268,10 @@
         entry.lastObservedAt = now(); entry.lastRemaining = remaining;
         emit(Object.assign({}, evidence, { elapsedSeconds: Math.floor(elapsedSeconds), waitSeconds, remainingSeconds: remaining,
           manualConfirmIncomplete: manualIncomplete(),
+          skipSingleAttemptQuiz: policy.active, singleAttemptBlocked: policy.blocked, attemptCount: policy.count,
           requiresManualSubmission: manualIncomplete() && (Boolean(entry.manualRequired) || runner === 'complete' && !evidence.fullyVerified),
           predictedScore: Math.round(evidence.predictedScore * 100) / 100, submitted: false, message: error || evidence.reason }));
+        if (policy.blocked) return blockSingleAttempt(policy);
         if (!enabled) return last;
         if (scope !== scopeValue(ctx, evidence, topic) || topic?.status !== 'matched') {
           disable('试卷、题库或主题关联已变更，请重新启动核验'); return last;