refactor🎨: move the operation log status constants out of app/admin

common/middleware imported app/admin/service/dto for two string constants,
which made a package apps are told to build on depend on one particular app.

app/admin/service/dto/sys_opera_log.go

@@ -5,12 +5,17 @@ import (
 
 	"go-admin/app/admin/models"
 	"go-admin/common/dto"
+	"go-admin/common/global"
 	common "go-admin/common/models"
 )
 
+// Deprecated: use global.OperaStatusEnabled / global.OperaStatusDisabled.
+// These two names are kept - misspelling and all - because forks import them;
+// the values moved to common/global so common/middleware no longer has to
+// import this package. See docs/contract.md.
 const (
-	OperaStatusEnabel  = "1" // 状态-正常
-	OperaStatusDisable = "2" // 状态-关闭
+	OperaStatusEnabel  = global.OperaStatusEnabled  // 状态-正常
+	OperaStatusDisable = global.OperaStatusDisabled // 状态-关闭
 )
 
 type SysOperaLogGetPageReq struct {

app/admin/service/dto/sys_opera_log_test.go

@@ -0,0 +1,24 @@
+package dto
+
+import (
+	"testing"
+
+	"go-admin/common/global"
+)
+
+// The values moved to common/global so common/middleware would stop importing
+// this package; these two names stayed behind as aliases, misspelling and all,
+// because forks import them.
+//
+// If they ever drift apart, rows written through the two spellings land in
+// different buckets and the operation-log filter silently misses half of them.
+func TestDeprecatedStatusAliasesStillMatch(t *testing.T) {
+	if OperaStatusEnabel != global.OperaStatusEnabled {
+		t.Errorf("OperaStatusEnabel = %q, global.OperaStatusEnabled = %q",
+			OperaStatusEnabel, global.OperaStatusEnabled)
+	}
+	if OperaStatusDisable != global.OperaStatusDisabled {
+		t.Errorf("OperaStatusDisable = %q, global.OperaStatusDisabled = %q",
+			OperaStatusDisable, global.OperaStatusDisabled)
+	}
+}