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/push/channels_definition.go

@@ -3,6 +3,8 @@
 
 package push
 
+import "slices"
+
 import "sync"
 
 const (
@@ -66,13 +68,7 @@ func ListDefinitions() []Definition {
 	}
 	// Add any others
 	for t, d := range definitions {
-		found := false
-		for _, o := range order {
-			if o == t {
-				found = true
-				break
-			}
-		}
+		found := slices.Contains(order, t)
 		if !found {
 			res = append(res, d)
 		}