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/axios/lib/helpers/ZlibHeaderTransformStream.js

@@ -0,0 +1,29 @@
+'use strict';
+
+import stream from 'stream';
+
+class ZlibHeaderTransformStream extends stream.Transform {
+  __transform(chunk, encoding, callback) {
+    this.push(chunk);
+    callback();
+  }
+
+  _transform(chunk, encoding, callback) {
+    if (chunk.length !== 0) {
+      this._transform = this.__transform;
+
+      // Add Default Compression headers if no zlib headers are present
+      if (chunk[0] !== 120) {
+        // Hex: 78
+        const header = Buffer.alloc(2);
+        header[0] = 120; // Hex: 78
+        header[1] = 156; // Hex: 9C
+        this.push(header, encoding);
+      }
+    }
+
+    this.__transform(chunk, encoding, callback);
+  }
+}
+
+export default ZlibHeaderTransformStream;