fix: 修复bot-activity两个致命BUG + 添加3个passerby bot补充板块覆盖 + 减少GoogleNews超时

scripts/bot-activity.mjs

@@ -153,7 +153,7 @@ async function fetchGoogleNewsRSS(query, lang = "zh-CN", country = "CN") {
     const url = `https://news.google.com/rss/search?q=${encodeURIComponent(query)}&hl=${lang}&gl=${country}&ceid=${country}:${lang === "zh-CN" ? "zh-Hans" : "en"}`;
     const response = await fetch(url, {
       headers: { "User-Agent": "Mozilla/5.0 (compatible; PasserbyBot/1.0)" },
-      signal: AbortSignal.timeout(8000),
+      signal: AbortSignal.timeout(3000),
     });
     if (!response.ok) return [];
     const xml = await response.text();
@@ -195,11 +195,11 @@ async function fetchRecentNewsForCategory(forumSlug) {
 
 function buildPasserbyTopicPrompt(bot, forumName, forumDescription, newsItems) {
   const p = bot.personality;
+  const today = new Date().toLocaleDateString("zh-CN", { year: "numeric", month: "long", day: "numeric" });
+
   const newsText = newsItems.length > 0
     ? newsItems.map((n, i) => `${i + 1}. [${n.pubDate || "近期"}] ${n.title}`).join("\n")
     : `(搜索不到实时新闻，请充分利用DeepSeek知识库中截至2025年6月的最新行业信息。今天是${today}，你必须让话题看起来像是今天或最近几天发生的。可以提及：今年发生的重大事件、近几个月出台的新政策、当前季节性的行业趋势、最近热门的讨论。在你的发言中自然地加入时间锚点，比如"上个月刚出来的…"、"最近大家都在说…"、"这个月的数据显示…"等，让读者第一眼就感受到这是当前的话题而不是老帖)`;
-
-  const today = new Date().toLocaleDateString("zh-CN", { year: "numeric", month: "long", day: "numeric" });
   const passerbyType = p.passerbyType || "observer";
 
   const typeInstructions = {
@@ -491,7 +491,12 @@ async function processForum(forumSlug, botCharacters, forceNewTopic = false) {
     existingTopics[0] && (Date.now() - existingTopics[0].createdAt.getTime()) > 24 * 60 * 60 * 1000;
 
   if (needsNewTopic) {
-    const topicAuthor = pick(forumBots.filter(c => c.activityLevel === "high" || c.activityLevel === "medium"));
+    const activeBots = forumBots.filter(c => c.activityLevel === "high" || c.activityLevel === "medium");
+    const topicAuthor = pick(activeBots.length > 0 ? activeBots : forumBots);
+    if (!topicAuthor) {
+      console.log(`${ts()}   No suitable bot to create topic.`);
+      return;
+    }
     const botConf = await getBotWithConfig(topicAuthor.key);
     if (!botConf) {
       console.log(`${ts()}   Bot "${topicAuthor.key}" not found in DB.`);