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/repository/analytics/node_observability.go

@@ -6,7 +6,7 @@ package analytics
 import (
 	"context"
 	"fmt"
-	"sort"
+	"slices"
 	"time"
 
 	"github.com/ClickHouse/clickhouse-go/v2/lib/driver"
@@ -367,7 +367,7 @@ func mergeNodeMetricHourlyPreferRollup(rollup, raw []NodeMetricHourly) []NodeMet
 	}
 	result := make([]NodeMetricHourly, 0, len(order))
 	// Keep chronological order of first-seen keys; re-sort by hour for stability.
-	sort.Slice(order, func(i, j int) bool { return order[i] < order[j] })
+	slices.Sort(order)
 	for _, key := range order {
 		result = append(result, byHour[key])
 	}

internal/repository/openflare_access_log.go

@@ -418,14 +418,8 @@ func openFlareAccessLogPaginateBounds(total int, page int, pageSize int) (int, i
 	if pageSize <= 0 {
 		return 0, total
 	}
-	start := page * pageSize
-	if start > total {
-		start = total
-	}
-	end := start + pageSize
-	if end > total {
-		end = total
-	}
+	start := min(page*pageSize, total)
+	end := min(start+pageSize, total)
 	return start, end
 }