feat: 微服务架构拆分和前后端优化

后端:
- 拆分出 agent_service, runtime_service, trading_service, news_service
- Gateway 模块化拆分 (gateway_*.py)
- 添加 domains/ 领域层
- 新增 control_client, runtime_client
- 更新 start-dev.sh 支持 split 服务模式

前端:
- 完善 API 服务层 (newsApi, tradingApi)
- 更新 vite.config.js
- Explain 组件优化

测试:
- 添加多个服务 app 测试

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

start-dev.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 # EvoTraders Development Startup Script
-# Single-process FastAPI with auto-reload
+# Split-service mode only
 
 set -e
 
@@ -36,16 +36,62 @@ if [ -z "$OPENAI_API_KEY" ]; then
     exit 1
 fi
 
+cd /Users/cillin/workspeace/evotraders
+PIDS=()
+
+start_service() {
+    local name="$1"
+    local app_path="$2"
+    local port="$3"
+
+    echo -e "${GREEN}Starting ${name}${NC} on port ${port}..."
+    SERVICE_NAME="${name}" python -m uvicorn "${app_path}" \
+        --host 0.0.0.0 \
+        --port "${port}" \
+        --reload \
+        --reload-dir backend \
+        --log-level info &
+    PIDS+=($!)
+}
+
+cleanup() {
+    if [ "${#PIDS[@]}" -gt 0 ]; then
+        echo ""
+        echo -e "${YELLOW}Stopping development services...${NC}"
+        kill "${PIDS[@]}" 2>/dev/null || true
+        wait "${PIDS[@]}" 2>/dev/null || true
+    fi
+}
+
+trap cleanup EXIT INT TERM
+
+if [ $# -gt 0 ]; then
+    echo -e "${YELLOW}Ignoring legacy mode argument(s): $*${NC}"
+    echo "Split-service mode is now the only supported development mode."
+fi
+
+export TRADING_SERVICE_URL="${TRADING_SERVICE_URL:-http://localhost:8001}"
+export NEWS_SERVICE_URL="${NEWS_SERVICE_URL:-http://localhost:8002}"
+export RUNTIME_SERVICE_URL="${RUNTIME_SERVICE_URL:-http://localhost:8003}"
+
 echo ""
-echo "Starting EvoTraders API (FastAPI) on port 8000..."
-echo "API Endpoints: http://localhost:8000/docs"
+echo -e "${GREEN}Starting EvoTraders split services (default mode)...${NC}"
+echo "  agent_service:   http://localhost:8000"
+echo "  runtime_service: http://localhost:8003"
+echo "  trading_service: http://localhost:8001"
+echo "  news_service:    http://localhost:8002"
+echo ""
+echo "Exported backend preference URLs:"
+echo "  TRADING_SERVICE_URL=${TRADING_SERVICE_URL}"
+echo "  NEWS_SERVICE_URL=${NEWS_SERVICE_URL}"
+echo "  RUNTIME_SERVICE_URL=${RUNTIME_SERVICE_URL}"
 echo ""
 
-# Start FastAPI with auto-reload for development
-cd /Users/cillin/workspeace/evotraders
-python -m uvicorn backend.app:app \
-    --host 0.0.0.0 \
-    --port 8000 \
-    --reload \
-    --reload-dir backend \
-    --log-level info
+start_service "agent_service" "backend.apps.agent_service:app" 8000
+start_service "runtime_service" "backend.apps.runtime_service:app" 8003
+start_service "trading_service" "backend.apps.trading_service:app" 8001
+start_service "news_service" "backend.apps.news_service:app" 8002
+
+echo -e "${GREEN}Split services are running.${NC}"
+echo "Use Ctrl+C to stop all services."
+wait