Update AI bot instructions

Signed-off-by: Artem Savchenko <armisav@gmail.com>

README.md

@@ -504,7 +504,10 @@ Huly provides AI-powered chatbot that provides several services:
 - live translations for virtual office voice and video chats
 
 1. Set up OpenAI account
-2. Add `aibot` container to the docker-compose.yaml
+2. Enable MongoDB service (required by aibot):
+   - Uncomment the `mongodb` service in `compose.yml`
+   - MongoDB is used by the aibot service for storing conversation data
+3. Add `aibot` container to the docker-compose.yaml
 
     ```yaml
       aibot:

compose.yml

@@ -88,6 +88,16 @@ services:
     networks:
       - huly_net
 
+  # mongodb:
+  #   image: mongo:7-jammy
+  #   container_name: mongodb
+  #   restart: unless-stopped
+  #   volumes:
+  #     - ${VOLUME_MONGO_PATH:-mongodb}:/data/db
+  #   networks:
+  #     - huly_net
+  #   # Required by aibot and calendar services
+
   rekoni:
     image: hardcoreeng/rekoni-service:${HULY_VERSION}
     environment:
@@ -235,6 +245,7 @@ volumes:
   cr_data:
   cr_certs:
   redpanda:
+  mongodb:
 
 networks:
   huly_net: