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scripts/03_start_infra.sh

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+#!/usr/bin/env bash
+# ══════════════════════════════════════════════════
+# 03_start_infra.sh
+# 分步启动基础设施（含健康等待），顺序：
+# PostgreSQL + Redis → etcd + MinIO → Milvus → Neo4j
+# 用法：bash scripts/03_start_infra.sh
+# ══════════════════════════════════════════════════
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
+cd "$PROJECT_DIR"
+
+RED='\033[0;31m'; GREEN='\033[0;32m'; YELLOW='\033[1;33m'; BLUE='\033[0;34m'; NC='\033[0m'
+info()  { echo -e "${BLUE}[INFO]${NC} $*"; }
+ok()    { echo -e "${GREEN}[OK]${NC} $*"; }
+warn()  { echo -e "${YELLOW}[WARN]${NC} $*"; }
+error() { echo -e "${RED}[ERROR]${NC} $*"; exit 1; }
+
+# 等待服务健康的函数
+wait_healthy() {
+    local service=$1
+    local max_wait=${2:-120}
+    local interval=5
+    local elapsed=0
+
+    info "等待 $service 健康就绪..."
+    while [[ $elapsed -lt $max_wait ]]; do
+        local status
+        status=$(docker compose ps --format json "$service" 2>/dev/null | \
+                 python3 -c "import sys,json; d=json.load(sys.stdin); print(d.get('Health','unknown'))" 2>/dev/null || echo "unknown")
+
+        if [[ "$status" == "healthy" ]]; then
+            ok "$service 已就绪"
+            return 0
+        fi
+
+        echo -n "."
+        sleep $interval
+        elapsed=$((elapsed + interval))
+    done
+    echo ""
+    error "$service 等待超时（${max_wait}s），请检查：docker compose logs $service"
+}
+
+info "══════════════════════════════════════════"
+info "  启动基础设施层"
+info "══════════════════════════════════════════"
+
+# ── Step 1：PostgreSQL + Redis ──────────────────
+info "Step 1/4：启动 PostgreSQL 和 Redis..."
+docker compose up -d postgres redis
+
+wait_healthy postgres 90
+wait_healthy redis 30
+ok "数据层就绪"
+
+# ── Step 2：etcd + MinIO（Milvus 依赖）─────────
+info "Step 2/4：启动 etcd 和 MinIO（Milvus 依赖）..."
+docker compose up -d etcd minio
+
+wait_healthy etcd 60
+wait_healthy minio 60
+ok "对象存储层就绪"
+
+# ── Step 3：Milvus ──────────────────────────────
+info "Step 3/4：启动 Milvus（向量数据库）..."
+docker compose up -d milvus
+
+info "Milvus 初始化需要约 60 秒，请耐心等待..."
+wait_healthy milvus 180
+ok "Milvus 就绪"
+
+# ── Step 4：Neo4j ───────────────────────────────
+info "Step 4/4：启动 Neo4j（知识图谱）..."
+docker compose up -d neo4j
+
+wait_healthy neo4j 120
+ok "Neo4j 就绪"
+
+# ── 汇总 ────────────────────────────────────────
+echo ""
+echo -e "${GREEN}══════════════════════════════════════════${NC}"
+echo -e "${GREEN}  基础设施启动完成！${NC}"
+echo -e "${GREEN}══════════════════════════════════════════${NC}"
+echo ""
+echo "  PostgreSQL : localhost:5432"
+echo "  Redis      : localhost:6379"
+echo "  Milvus     : localhost:19530 (gRPC), localhost:9091 (HTTP)"
+echo "  Neo4j      : localhost:7474 (Browser), localhost:7687 (Bolt)"
+echo "  MinIO 控制台: localhost:9001 (admin/minioadmin)"
+echo ""
+echo "下一步：bash scripts/04_build_services.sh"