feat: add official full pull smoke

Emit runtime download progress and validation summaries for official sync.

Add repeatable real-network full pull smoke runbook and script.

Fixes #4

Fixes #6

Makefile

@@ -1,4 +1,4 @@
-.PHONY: help build test clean check fmt lint install dev docker-build docker-up docker-down
+.PHONY: help build test clean check fmt lint install dev docker-build docker-up docker-down official-smoke
 
 # 默认目标
 .DEFAULT_GOAL := help
@@ -67,6 +67,10 @@ bench: ## 运行性能基准测试
 		echo "$(YELLOW)No Go packages yet, skipping Go benchmarks...$(NC)"; \
 	fi
 
+official-smoke: ## 运行真实官方全量拉取 smoke（默认写入 /tmp 隔离目录）
+	@echo "$(BLUE)Running official full pull smoke...$(NC)"
+	./scripts/official-full-pull-smoke.sh
+
 # ============================================================================
 # 代码质量
 # ============================================================================