run demos without docker, keep docker optional via --with-ui

demos/agent_orchestration/travel_agents/start_agents.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+set -e
+
+PIDS=()
+
+log() { echo "$(date '+%F %T') - $*"; }
+
+cleanup() {
+    log "Stopping agents..."
+    for PID in "${PIDS[@]}"; do
+        kill $PID 2>/dev/null && log "Stopped process $PID"
+    done
+    exit 0
+}
+
+trap cleanup EXIT INT TERM
+
+export LLM_GATEWAY_ENDPOINT=http://localhost:12000/v1
+
+log "Starting weather_agent on port 10510..."
+uv run python src/travel_agents/weather_agent.py &
+PIDS+=($!)
+
+log "Starting flight_agent on port 10520..."
+uv run python src/travel_agents/flight_agent.py &
+PIDS+=($!)
+
+for PID in "${PIDS[@]}"; do
+    wait "$PID"
+done