Add visitor bot visibility toggle

server.js

@@ -639,6 +639,7 @@ function currentVisitors() {
 function formatVisitorSession(row) {
   const history = parseJson(row.browsing_history_json, []);
   const device = parseJson(row.device_json, {});
+  const bot = botInfo(device.userAgent);
   const countryCode = row.country_code || countryFromTimezone(row.timezone) || countryFromLanguage(row.language);
   return {
     id: row.visitor_token,
@@ -652,6 +653,8 @@ function formatVisitorSession(row) {
     visitCount: Math.max(1, history.length),
     conversationCount: row.visitor_conversation_count || 0,
     lastConversationId: row.last_conversation_id,
+    isBot: bot.isBot,
+    botReason: bot.reason,
     device,
     language: row.language,
     timezone: row.timezone,
@@ -915,6 +918,22 @@ function countryFromLanguage(language) {
   return match ? match[1].toUpperCase() : null;
 }
 
+function botInfo(userAgent) {
+  const ua = String(userAgent || "");
+  const patterns = [
+    "googlebot", "bingbot", "slurp", "duckduckbot", "baiduspider", "yandexbot",
+    "ahrefsbot", "semrushbot", "mj12bot", "dotbot", "petalbot", "bytespider",
+    "facebookexternalhit", "twitterbot", "linkedinbot", "slackbot", "discordbot",
+    "whatsapp", "telegrambot", "preview", "crawler", "spider", "headlesschrome",
+    "pingdom", "uptimerobot", "curl", "wget", "python-requests", "axios", "httpclient"
+  ];
+  const lower = ua.toLowerCase();
+  const match = patterns.find((pattern) => lower.includes(pattern));
+  if (match) return { isBot: true, reason: match };
+  if (/\bbot\b/i.test(ua)) return { isBot: true, reason: "bot" };
+  return { isBot: false, reason: "" };
+}
+
 function visitorInitials(visitorToken) {
   const hash = crypto.createHash("sha1").update(String(visitorToken || "")).digest("hex").toUpperCase();
   return hash.slice(0, 2);