feat: 五项目业务实现并对接完成

- MES(B): 工单/BOM/备料/工序字典/PLC下发/拧紧/扫码报工/半成品/AGV/追溯逻辑，WMS与海康RCS客户端，看板Redis缓存API(概览/设备/进度/报警/趋势)+SSE
- WMS(C): JWT滑动续签、Excel导入、盘点、内部API、种子数据、独立Postgres配置
- WMS客户端(E): Go网关8891反向代理+内嵌Vue3十页
- 工位终端(D): SQLite本地缓存+模拟拧紧源+内嵌Vue3页面
- Dashboard(A): 看板数据改接MES内部缓存API，SSE实时刷新+vite代理
- 清理各项目球形磨遗留代码，新增部署手册.md

bj_power_wms/internal/handler/response.go

@@ -0,0 +1,26 @@
+package handler
+
+import (
+	"net/http"
+
+	"github.com/zeromicro/go-zero/rest/httpx"
+)
+
+// 统一响应结构：{ code, message, data }
+type Response struct {
+	Code    int    `json:"code"`
+	Message string `json:"message"`
+	Data    any    `json:"data,omitempty"`
+}
+
+func ok(w http.ResponseWriter, data any) {
+	httpx.WriteJson(w, http.StatusOK, Response{Code: 0, Message: "ok", Data: data})
+}
+
+func fail(w http.ResponseWriter, httpStatus int, message string) {
+	httpx.WriteJson(w, httpStatus, Response{Code: -1, Message: message})
+}
+
+func failCode(w http.ResponseWriter, httpStatus, code int, message string) {
+	httpx.WriteJson(w, httpStatus, Response{Code: code, Message: message})
+}