fix: add default turn server conf for remote mode

scripts/setup_remote.sh

@@ -133,7 +133,40 @@ echo -e "${BLUE}[4/5] Generating SSL certificates...${NC}"
 ./generate_certificate.sh
 echo -e "${GREEN}✓ SSL certificates generated${NC}"
 
-echo -e "${BLUE}[5/5] Creating environment file...${NC}"
+echo -e "${BLUE}[5/6] Creating TURN server configuration...${NC}"
+cat > turnserver.conf << TURN_EOF
+# Coturn TURN Server - Docker Configuration
+# Auto-generated by setup_remote.sh
+
+# Listener ports
+listening-port=3478
+tls-listening-port=5349
+
+# Relay port range
+min-port=49152
+max-port=49200
+
+# Network - external IP for NAT traversal
+external-ip=$SERVER_IP
+
+# Realm
+realm=dograh.com
+
+# Authentication (TURN REST API with time-limited credentials)
+use-auth-secret
+static-auth-secret=$TURN_SECRET
+
+# Security
+fingerprint
+no-cli
+no-multicast-peers
+
+# Logging
+log-file=stdout
+TURN_EOF
+echo -e "${GREEN}✓ turnserver.conf created${NC}"
+
+echo -e "${BLUE}[6/6] Creating environment file...${NC}"
 cat > .env << ENV_EOF
 # Backend API endpoint (for remote deployment)
 BACKEND_API_ENDPOINT=https://$SERVER_IP
@@ -155,6 +188,7 @@ echo ""
 echo -e "Files created in ${BLUE}$(pwd)${NC}:"
 echo "  - docker-compose.yaml"
 echo "  - nginx.conf"
+echo "  - turnserver.conf"
 echo "  - generate_certificate.sh"
 echo "  - certs/local.crt"
 echo "  - certs/local.key"