feat: Add Chatwoot Agent Bot prototype and FAQ knowledge base

- Created chatwoot-agent-bot/ with Node.js webhook server
- Bot detects intent (greeting, billing, technical, features, account)
- Auto-responds from FAQ knowledge base or escalates to human
- FAQ-KB.md: Living knowledge base that grows with customer questions
- CHATWOOT-SETUP.md: Complete deployment and configuration guide
- Supports Telegram notifications on escalation
- Bot runs on port 3001, ready for Chatwoot webhook integration

chatwoot-agent-bot/node_modules/asynckit/lib/defer.js

@@ -0,0 +1,26 @@
+module.exports = defer;
+
+/**
+ * Runs provided function on next iteration of the event loop
+ *
+ * @param {function} fn - function to run
+ */
+function defer(fn)
+{
+  var nextTick = typeof setImmediate == 'function'
+    ? setImmediate
+    : (
+      typeof process == 'object' && typeof process.nextTick == 'function'
+      ? process.nextTick
+      : null
+    );
+
+  if (nextTick)
+  {
+    nextTick(fn);
+  }
+  else
+  {
+    setTimeout(fn, 0);
+  }
+}