v1.9.0: 试用策略改为 3 天/30 条（任一先到即止）+ 价值时刻提示 + 到期 24h 内 8 折 + 过期只锁评论

content.js

@@ -855,7 +855,11 @@
   function finish(task, ok, reason) {
     clearTask();
     running = false;
-    relay({ type: "finished", ok: !!ok, reason: reason || "", done: task ? (task.sent || 0) : 0, failed: task ? (task.failed || 0) : 0 });
+    let avgGapSec = 0;
+    if (task && task.firstSentAt && task.lastSentAt && (task.sent || 0) >= 2) {
+      avgGapSec = Math.round((task.lastSentAt - task.firstSentAt) / ((task.sent || 1) - 1) / 1000);
+    }
+    relay({ type: "finished", ok: !!ok, reason: reason || "", done: task ? (task.sent || 0) : 0, failed: task ? (task.failed || 0) : 0, avgGapSec: avgGapSec });
     step((ok ? "✅ " : "⏹ ") + (reason || (ok ? "执行完成" : "已停止")), ok ? "ok" : "fail");
   }
 
@@ -966,6 +970,11 @@
       const doDm = (what === "dm" || what === "both");
 
       if (doComment) {
+        // 试用额度检查：发到额度就自动停，不用等用户发现
+        if (cfg.trialQuota != null && (task.sent || 0) >= cfg.trialQuota) {
+          finish(task, true, "试用期 " + cfg.trialQuota + " 条额度已用完，购买卡密激活后不限量");
+          return;
+        }
         step("评论[" + (SRC_LABEL[video.src] || "模板") + "]：" + text.slice(0, 30) + (text.length > 30 ? "…" : ""));
 
         const r = await sendOne(video, text, cfg.sendMode !== "api");
@@ -974,6 +983,8 @@
 
         if (r.ok) {
           step(r.verified ? "✅ 评论成功" : "⚠️ 已发送但未在页面确认，记为已评论", r.verified ? "ok" : "fail");
+          if (!task.firstSentAt) task.firstSentAt = Date.now();
+          task.lastSentAt = Date.now();
           await recordOne(task, video, text, true);
         } else {
           step("❌ 失败：" + r.error, "fail");