modernize 37→5（-32）：interface{}→any、内置 max/min、slices/maps 辅助、strings.Cut/SplitSeq、strings.Builder（修复 mail.go O(n²) 拼接）。逐 hunk 核对语义等价；omitzero 冲突修复被自动跳过（wire 格式不变）；手动清 4 处遗留 sort import + 2 处 QF1012。

Result: {"status":"keep","total_issues":74,"golint_canonicalheader":8,"golint_errname":1,"golint_errorlint":12,"golint_forcetypeassert":3,"golint_gosec":0,"golint_intrange":3,"golint_modernize":5,"golint_nilnil":3,"golint_perfsprint":18,"golint_prealloc":3,"golint_recvcheck":7,"golint_usestdlibvars":3,"golint_wastedassign":7,"golint_total":73,"eslint_problems":1,"eslint_errors":0,"eslint_warnings":1,"tsc_errors":0,"measure_s":38}

internal/apps/admin/logs/utils.go

@@ -35,8 +35,8 @@ func getUpgrader() *websocket.Upgrader {
 			ctx := r.Context()
 			if sc, err := repository.GetSystemConfigByKey(ctx, model.ConfigKeyServerAddress); err == nil && sc.Value != "" {
 				originToCheck := strings.TrimRight(strings.TrimSpace(origin), "/")
-				allowedOrigins := strings.Split(sc.Value, ",")
-				for _, allowed := range allowedOrigins {
+				allowedOrigins := strings.SplitSeq(sc.Value, ",")
+				for allowed := range allowedOrigins {
 					allowed = strings.TrimRight(strings.TrimSpace(allowed), "/")
 					if allowed != "" && strings.EqualFold(allowed, originToCheck) {
 						return true