feat(db): 将种子数据改为 SQL 命令形式

新增 backend/seeds/H001.sql，通过 sh scripts/dev.sh seed H001
经由 docker exec 执行，无需本地 mysql 客户端。

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

scripts/dev.sh

@@ -6,15 +6,15 @@ fi
 # dev.sh — 本地开发环境管理
 #
 # 启动：
-#   bash scripts/dev.sh run              # 启动前后端（后端无改动则跳过重启）
-#   bash scripts/dev.sh run --force      # 强制重启后端
-#   bash scripts/dev.sh --backend-only   # 仅启动后端
-#   bash scripts/dev.sh --frontend-only  # 仅启动前端
+#   sh scripts/dev.sh run                # 启动前后端（后端无改动则跳过重启）
+#   sh scripts/dev.sh run --force        # 强制重启后端
+#   sh scripts/dev.sh --backend-only     # 仅启动后端
+#   sh scripts/dev.sh --frontend-only    # 仅启动前端
 #
 # 数据库：
-#   bash scripts/dev.sh reset            # 删表重建 + 写入测试数据
-#   bash scripts/dev.sh seed             # 写入测试数据（已存在则跳过）
-#   bash scripts/dev.sh clear            # 清空所有数据（不写入）
+#   sh scripts/dev.sh seed H001          # 清空并写入 H001 测试数据（SQL 文件）
+#   sh scripts/dev.sh reset              # 删表重建（AutoMigrate）
+#   sh scripts/dev.sh clear              # 清空所有业务数据
 
 set -e
 
@@ -30,6 +30,46 @@ BACKEND_HASH_FILE="$LOG_DIR/backend.hash"
 
 mkdir -p "$LOG_DIR"
 
+# ── seed 命令 ────────────────────────────────────────────────
+# 用法: cmd_seed <shop_code>
+# 从 backend/config/config.yaml 读取 DSN，执行 backend/seeds/<shop>.sql
+cmd_seed() {
+  local shop="${1:-}"
+  if [ -z "$shop" ]; then
+    error "用法: sh scripts/dev.sh seed <shop_code>   示例: sh scripts/dev.sh seed H001"
+    exit 1
+  fi
+
+  local sql_file="$ROOT/backend/seeds/${shop}.sql"
+  if [ ! -f "$sql_file" ]; then
+    error "种子文件不存在: $sql_file"
+    exit 1
+  fi
+
+  # 从 docker-compose.yml 读取容器名和数据库信息
+  local compose_file="$ROOT/deploy/docker-compose.yml"
+  local container db_pass db_name
+  container=$(grep 'container_name:' "$compose_file" | grep -i mysql | head -1 | sed 's/.*container_name: *//')
+  db_pass=$(grep 'MYSQL_ROOT_PASSWORD:' "$compose_file" | head -1 | sed 's/.*MYSQL_ROOT_PASSWORD: *//')
+  db_name=$(grep 'MYSQL_DATABASE:' "$compose_file" | head -1 | sed 's/.*MYSQL_DATABASE: *//')
+
+  # 检查容器是否运行
+  if ! docker ps --format '{{.Names}}' | grep -q "^${container}$"; then
+    error "MySQL 容器 '${container}' 未运行，请先执行: docker compose -f deploy/docker-compose.yml up -d"
+    exit 1
+  fi
+
+  info "写入 ${shop} 种子数据 → 容器 ${container} / ${db_name}"
+  docker exec -i "$container" mysql -uroot -p"$db_pass" "$db_name" < "$sql_file"
+  success "✅ ${shop} 种子数据写入完成"
+  echo ""
+  echo "  登录信息:"
+  echo "    门店编号: ${shop}"
+  echo "    admin    / password123"
+  echo "    operator / password123"
+  echo "    test     / password123"
+}
+
 # ── 颜色输出 ──────────────────────────────────────────────
 GREEN='\033[0;32m'
 YELLOW='\033[1;33m'
@@ -52,15 +92,20 @@ case "$COMMAND" in
   run)
     [ "${2:-}" = "--force" ] && FORCE=true
     ;;
-  seed|reset|clear)
-    # seed / reset / clear 三个命令
-    SEED_ARG=""
-    [ "$COMMAND" = "reset" ] && SEED_ARG="--reset"
-    [ "$COMMAND" = "clear" ] && SEED_ARG="--clear"
-    [ -n "${2:-}" ] && SEED_ARG="$2"
-    info "写入初始测试数据..."
+  seed)
+    cmd_seed "${2:-}"
+    exit 0
+    ;;
+  reset)
+    info "删表重建（AutoMigrate）..."
     cd "$BACKEND_DIR"
-    go run cmd/seed/main.go $SEED_ARG
+    go run cmd/seed/main.go --reset
+    exit 0
+    ;;
+  clear)
+    info "清空所有业务数据..."
+    cd "$BACKEND_DIR"
+    go run cmd/seed/main.go --clear
     exit 0
     ;;
   --backend-only)
@@ -74,7 +119,7 @@ case "$COMMAND" in
     ;;
   *)
     error "未知命令: $COMMAND"
-    echo "用法: bash scripts/dev.sh [run [--force] | reset | clear | seed | --backend-only | --frontend-only]"
+    echo "用法: sh scripts/dev.sh [run [--force] | seed <shop> | reset | clear | --backend-only | --frontend-only]"
     exit 1
     ;;
 esac