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/pages/helpers.go

@@ -80,18 +80,11 @@ func resolvePagesLimits(ctx context.Context) pagesLimits {
 
 	historyCount := defaultPagesMaxHistoryCount
 	if value, err := repository.GetIntByKey(ctx, model.ConfigKeyPagesMaxHistoryCount); err == nil {
-		if value < 0 {
-			historyCount = 0
-		} else {
-			historyCount = value
-		}
+		historyCount = max(value, 0)
 	}
 
 	packageBytes := int64(packageMB) * bytesPerMiB
-	extractedBytes := packageBytes * pagesExtractedSizeMultiplier
-	if extractedBytes < pagesMinExtractedSizeBytes {
-		extractedBytes = pagesMinExtractedSizeBytes
-	}
+	extractedBytes := max(packageBytes*pagesExtractedSizeMultiplier, pagesMinExtractedSizeBytes)
 
 	return pagesLimits{
 		PackageBytes:   packageBytes,
@@ -154,7 +147,7 @@ func normalizePagesFallbackPath(raw string) (string, error) {
 			return "", errors.New("spa fallback 回退路径不能包含空白或控制字符")
 		}
 	}
-	for _, segment := range strings.Split(value, "/") {
+	for segment := range strings.SplitSeq(value, "/") {
 		if segment == "." || segment == ".." {
 			return "", errors.New("spa fallback 回退路径不能包含 . 或 .. 路径段")
 		}

internal/apps/openflare/pages/logics.go

@@ -513,7 +513,7 @@ func pruneProjectDeploymentHistory(ctx context.Context, projectID uint, keepCoun
 	// Two passes: first pass after upload, second pass heals a concurrent race
 	// that inserted another deployment between our list and delete.
 	var lastErr error
-	for pass := 0; pass < 2; pass++ {
+	for range 2 {
 		deleted, err := pruneProjectDeploymentHistoryOnce(ctx, projectID, keepCount, preserveCandidateID)
 		if err != nil {
 			lastErr = err

internal/apps/openflare/pages/source_sync.go

@@ -9,7 +9,7 @@ import (
 	"errors"
 	"fmt"
 	"path"
-	"sort"
+	"slices"
 	"strings"
 	"sync"
 	"time"
@@ -611,7 +611,7 @@ func lockSourceDeploymentUploadsTx(
 	if hasIngest && ingestResult.Upload.ID != 0 && ingestResult.Upload.ID != target.UploadID {
 		uploadIDs = append(uploadIDs, ingestResult.Upload.ID)
 	}
-	sort.Slice(uploadIDs, func(i, j int) bool { return uploadIDs[i] < uploadIDs[j] })
+	slices.Sort(uploadIDs)
 	var records []model.Upload
 	if err := tx.Clauses(clause.Locking{Strength: pagesRowLockStrength}).
 		Where("id IN ?", uploadIDs).