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/openflare/uptimekuma/client.go

@@ -10,6 +10,7 @@ import (
 	"fmt"
 	"io"
 	"log/slog"
+	"maps"
 	"net/http"
 	"strconv"
 	"strings"
@@ -180,8 +181,8 @@ func (c *SocketIOClient) pollLoop() {
 		}
 
 		slog.Debug("Received polling payload from Uptime Kuma", "length", len(bodyStr))
-		packets := strings.Split(bodyStr, "\x1e")
-		for _, pkt := range packets {
+		packets := strings.SplitSeq(bodyStr, "\x1e")
+		for pkt := range packets {
 			if len(pkt) == 0 {
 				continue
 			}
@@ -352,9 +353,7 @@ func (c *SocketIOClient) GetMonitorList() map[string]Monitor {
 	defer c.monitorListMutex.RUnlock()
 
 	m := make(map[string]Monitor, len(c.monitorList))
-	for k, v := range c.monitorList {
-		m[k] = v
-	}
+	maps.Copy(m, c.monitorList)
 	return m
 }