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/merge-descriptors/index.d.ts

@@ -0,0 +1,11 @@
+/**
+Merges "own" properties from a source to a destination object, including non-enumerable and accessor-defined properties. It retains original values and descriptors, ensuring the destination receives a complete and accurate copy of the source's properties.
+
+@param destination - The object to receive properties.
+@param source - The object providing properties.
+@param overwrite - Optional boolean to control overwriting of existing properties. Defaults to true.
+@returns The modified destination object.
+*/
+declare function mergeDescriptors<T, U>(destination: T, source: U, overwrite?: boolean): T & U;
+
+export = mergeDescriptors;