fix: rebuild MES as compilable go-zero+ent backend (renamed bj_power_mes), restore 3 workstation projects from pristine original, align naming; all Go projects go build clean

bj_power_mes/internal/processor/tool/scanner.go

@@ -0,0 +1,63 @@
+package tool
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+
+	"bj_power_mes/internal/robot"
+)
+
+// ScannerTool 扫码器，实现 HandheldTool 接口
+// 通过 RobotManager 控制机器人执行扫码动作并读取扫码结果
+type ScannerTool struct {
+	robotMgr *robot.Manager // 机器人管理器，用于控制扫码动作
+}
+
+// NewScannerTool 创建扫码器工具
+func NewScannerTool(robotMgr *robot.Manager) *ScannerTool {
+	return &ScannerTool{robotMgr: robotMgr}
+}
+
+// ID 返回扫码器唯一标识
+func (t *ScannerTool) ID() string { return "scanner-1" }
+
+// Type 返回工具类型编码
+func (t *ScannerTool) Type() string { return "SCANNER" }
+
+// Name 返回工具显示名称
+func (t *ScannerTool) Name() string { return "扫码器" }
+
+// Execute 执行扫码操作：启动扫码→读取结果→清除数据
+func (t *ScannerTool) Execute(ctx context.Context, cmd ToolCommand) error {
+	wt := extractWorkpieceType(cmd.Params)
+	round := 1
+	if v, ok := cmd.Params["round"]; ok {
+		if n, ok := v.(int); ok {
+			round = n
+		}
+	}
+
+	rc, exist := t.robotMgr.GetRobot()
+	if !exist || rc == nil {
+		return fmt.Errorf("robot controller not available")
+	}
+
+	slog.Info("scanner: start scan", "workpieceType", wt, "round", round)
+	if err := rc.StartScanCode(ctx, wt, round); err != nil {
+		return fmt.Errorf("start scan code: %w", err)
+	}
+
+	code, err := t.robotMgr.ReadScanCodeData(ctx)
+	if err != nil {
+		return fmt.Errorf("read scan code: %w", err)
+	}
+
+	if clearErr := t.robotMgr.ClearScanCodeData(ctx); clearErr != nil {
+		slog.Warn("scanner: failed to clear scan data", "error", clearErr)
+	}
+
+	slog.Info("scanner: scan complete", "code", code)
+	cmd.Params["scanCode"] = code
+	return nil
+}