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}

.auto/log.jsonl

@@ -1,2 +1,3 @@
 {"type":"config","name":"前后端代码质量优化（符合最佳实践）","metricName":"total_issues","metricUnit":"","bestDirection":"lower"}
 {"run":1,"commit":"305d609","metric":108,"metrics":{"golint_canonicalheader":8,"golint_errname":1,"golint_errorlint":12,"golint_forcetypeassert":3,"golint_gosec":2,"golint_intrange":3,"golint_modernize":37,"golint_nilnil":3,"golint_perfsprint":18,"golint_prealloc":3,"golint_recvcheck":7,"golint_usestdlibvars":3,"golint_wastedassign":7,"golint_total":107,"eslint_problems":1,"eslint_errors":0,"eslint_warnings":1,"tsc_errors":0,"measure_s":36},"status":"checks_failed","description":"基线：总问题 108（golangci 107 + eslint 1）。checks 失败的唯一原因：repo 自带 golangci gate 有 2 个既有 gosec G115 问题（预期内，首次修复后即绿）。","timestamp":1786871594292,"segment":0,"confidence":null,"asi":{"hypothesis":"baseline","next_action_hint":"修复 internal/apps/edge/observability/linux.go 的 2 个 G115 gosec 问题后 checks.sh 才能通过；之后每次迭代即可正常 keep/discard"}}
+{"run":2,"commit":"f1f6bb8","metric":106,"metrics":{"golint_canonicalheader":8,"golint_errname":1,"golint_errorlint":12,"golint_forcetypeassert":3,"golint_gosec":0,"golint_intrange":3,"golint_modernize":37,"golint_nilnil":3,"golint_perfsprint":18,"golint_prealloc":3,"golint_recvcheck":7,"golint_usestdlibvars":3,"golint_wastedassign":7,"golint_total":105,"eslint_problems":1,"eslint_errors":0,"eslint_warnings":1,"tsc_errors":0,"measure_s":38},"status":"keep","description":"修复 internal/apps/edge/observability/linux.go 的 2 个 gosec G115 整数溢出转换：helper 改为接收 int64 b，用 gosec 认可的饱和乘法模式（uint64 域乘积 + 上界比较），去掉原 //nolint:gosec，语义不变（Bsize 恒为正）。repo 自带 gate 首次全绿。","timestamp":1786872064145,"segment":0,"confidence":null,"asi":{"hypothesis":"修复 gosec G115：multiplyUint64ToInt64 改为 accept int64 b 并采用 gosec 认可的饱和乘法模式","insight":"gosec G115 不接受分支上界证明（a > MaxInt64/b），但接受先算 uint64 乘积再 if v > MaxInt64 饱和的模式，无需 nolint","next_action_hint":"下一步批量清理 modernize(37)/perfsprint(18) 等自动可修复类别，用 golangci-lint --fix 后人工核对 diff"}}

internal/apps/admin/db_manage/routers.go

@@ -50,9 +50,9 @@ type GetTableDataRequest struct {
 
 // TableDataResponse 动态数据表响应结构体
 type TableDataResponse struct {
-	Columns []string                 `json:"columns"`
-	Total   int64                    `json:"total"`
-	Results []map[string]interface{} `json:"results"`
+	Columns []string         `json:"columns"`
+	Total   int64            `json:"total"`
+	Results []map[string]any `json:"results"`
 }
 
 // ExecuteSQLRequest 执行自定义 SQL 请求结构体
@@ -62,11 +62,11 @@ type ExecuteSQLRequest struct {
 
 // ExecuteSQLResponse 执行自定义 SQL 响应结构体
 type ExecuteSQLResponse struct {
-	Type            string                   `json:"type"` // "select" 或 "exec"
-	Columns         []string                 `json:"columns,omitempty"`
-	Results         []map[string]interface{} `json:"results,omitempty"`
-	AffectedRows    int64                    `json:"affected_rows"`
-	ExecutionTimeMs int64                    `json:"execution_time_ms"`
+	Type            string           `json:"type"` // "select" 或 "exec"
+	Columns         []string         `json:"columns,omitempty"`
+	Results         []map[string]any `json:"results,omitempty"`
+	AffectedRows    int64            `json:"affected_rows"`
+	ExecutionTimeMs int64            `json:"execution_time_ms"`
 }
 
 // formatBytes 格式化字节大小为可读字符串
@@ -119,10 +119,7 @@ func getSQLiteOverview(gormDB *gorm.DB) (DBOverviewResponse, error) {
 
 	var sizeStr string
 	if fi, err := os.Stat(name); err == nil {
-		size := fi.Size()
-		if size < 0 {
-			size = 0
-		}
+		size := max(fi.Size(), 0)
 		sizeStr = formatBytes(uint64(size))
 	} else {
 		sizeStr = "0 B"
@@ -165,10 +162,7 @@ func getPostgresOverview(gormDB *gorm.DB) (DBOverviewResponse, error) {
 	var sizeStr string
 	var sizeBytes sql.NullInt64
 	if err := gormDB.Raw("SELECT pg_database_size(current_database())").Scan(&sizeBytes).Error; err == nil && sizeBytes.Valid {
-		size := sizeBytes.Int64
-		if size < 0 {
-			size = 0
-		}
+		size := max(sizeBytes.Int64, 0)
 		sizeStr = formatBytes(uint64(size))
 	} else {
 		sizeStr = "0 B"
@@ -294,10 +288,7 @@ func GetDBTableData(c *gin.Context) {
 		return
 	}
 
-	offset := (req.Page - 1) * req.PageSize
-	if offset < 0 {
-		offset = 0
-	}
+	offset := max((req.Page-1)*req.PageSize, 0)
 	limit := req.PageSize
 	if limit <= 0 {
 		limit = 10
@@ -332,11 +323,11 @@ func GetDBTableData(c *gin.Context) {
 }
 
 // scanTableRows 扫描并提取数据表行数据，做截断处理
-func scanTableRows(rows *sql.Rows, cols []string) ([]map[string]interface{}, error) {
-	results := make([]map[string]interface{}, 0)
+func scanTableRows(rows *sql.Rows, cols []string) ([]map[string]any, error) {
+	results := make([]map[string]any, 0)
 	for rows.Next() {
-		columns := make([]interface{}, len(cols))
-		columnPointers := make([]interface{}, len(cols))
+		columns := make([]any, len(cols))
+		columnPointers := make([]any, len(cols))
 		for i := range columns {
 			columnPointers[i] = &columns[i]
 		}
@@ -345,7 +336,7 @@ func scanTableRows(rows *sql.Rows, cols []string) ([]map[string]interface{}, err
 			return nil, err
 		}
 
-		rowMap := make(map[string]interface{})
+		rowMap := make(map[string]any)
 		for i, colName := range cols {
 			val := columns[i]
 			if b, ok := val.([]byte); ok {
@@ -385,10 +376,10 @@ func executeSQLQuery(gormDB *gorm.DB, sqlStr string, startTime time.Time) (Execu
 		return ExecuteSQLResponse{}, err
 	}
 
-	results := make([]map[string]interface{}, 0)
+	results := make([]map[string]any, 0)
 	for rows.Next() {
-		columns := make([]interface{}, len(cols))
-		columnPointers := make([]interface{}, len(cols))
+		columns := make([]any, len(cols))
+		columnPointers := make([]any, len(cols))
 		for i := range columns {
 			columnPointers[i] = &columns[i]
 		}
@@ -397,7 +388,7 @@ func executeSQLQuery(gormDB *gorm.DB, sqlStr string, startTime time.Time) (Execu
 			return ExecuteSQLResponse{}, err
 		}
 
-		rowMap := make(map[string]interface{})
+		rowMap := make(map[string]any)
 		for i, colName := range cols {
 			val := columns[i]
 			if b, ok := val.([]byte); ok {

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

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)
 		}

internal/apps/admin/push/events.go

@@ -9,6 +9,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"maps"
 	"strings"
 
 	"github.com/Rain-kl/Wavelet/internal/infra/task"
@@ -34,9 +35,7 @@ func (m NotificationMessage) Flatten() map[string]any {
 		keyContent: m.Content,
 		keyLevel:   m.Level,
 	}
-	for k, v := range m.Ext {
-		res[k] = v
-	}
+	maps.Copy(res, m.Ext)
 	return res
 }
 

internal/apps/admin/updater/logics.go

@@ -17,6 +17,7 @@ import (
 	"os"
 	"path/filepath"
 	"runtime"
+	"slices"
 	"strings"
 	"sync"
 	"time"
@@ -163,13 +164,7 @@ func selectLatestRelease(repository string, releases []githubRelease) (githubRel
 		}
 		expectedNames := expectedAssetNames(repository, release.TagName)
 		for _, asset := range release.Assets {
-			matched := false
-			for _, name := range expectedNames {
-				if asset.Name == name {
-					matched = true
-					break
-				}
-			}
+			matched := slices.Contains(expectedNames, asset.Name)
 			if !matched || asset.BrowserDownloadURL == "" || asset.State != "uploaded" {
 				continue
 			}
@@ -348,10 +343,8 @@ func getCandidateBinaryNames(executable string, repository string) []string {
 		if runtime.GOOS == windowsOS && !strings.HasSuffix(strings.ToLower(name), ".exe") {
 			name += ".exe"
 		}
-		for _, existing := range names {
-			if existing == name {
-				return
-			}
+		if slices.Contains(names, name) {
+			return
 		}
 		names = append(names, name)
 	}

internal/apps/admin/user/routers.go

@@ -7,6 +7,7 @@ package user
 import (
 	"errors"
 	"net/http"
+	"slices"
 	"strconv"
 	"time"
 
@@ -93,17 +94,13 @@ func abortUserLogicError(c *gin.Context, err error, notFoundMsg string, forbidde
 		return true
 	}
 	msg := err.Error()
-	for _, m := range badRequestMsgs {
-		if msg == m {
-			response.AbortBadRequest(c, msg)
-			return true
-		}
+	if slices.Contains(badRequestMsgs, msg) {
+		response.AbortBadRequest(c, msg)
+		return true
 	}
-	for _, m := range forbiddenMsgs {
-		if msg == m {
-			response.AbortForbidden(c, msg)
-			return true
-		}
+	if slices.Contains(forbiddenMsgs, msg) {
+		response.AbortForbidden(c, msg)
+		return true
 	}
 	logger.ErrorF(c.Request.Context(), "Admin user error: %v", err)
 	response.AbortInternal(c, "内部服务器错误")

internal/apps/agent/runtimeuser/runtimeuser.go

@@ -120,7 +120,7 @@ func ensureWorldTraversablePath(targetDir string) error {
 	if current == "" || current == "." {
 		return nil
 	}
-	for depth := 0; depth < maxDepth; depth++ {
+	for range maxDepth {
 		if err := os.Chmod(current, DefaultDirPerm); err != nil { //nolint:gosec // parent dirs must be traversable by the runtime user
 			if os.IsNotExist(err) || os.IsPermission(err) {
 				break

internal/apps/agent/sync/pages.go

@@ -198,7 +198,7 @@ func (s *Service) ensurePagesProject(ctx context.Context, snapshot *state.Snapsh
 	}
 
 	var lastErr error
-	for attempt := 0; attempt < pagesLatestPullAttempts; attempt++ {
+	for attempt := range pagesLatestPullAttempts {
 		latest, err := s.client.GetPagesProjectLatestHash(ctx, projectID)
 		if err != nil {
 			return fmt.Errorf("fetch Pages project %d latest hash: %w", projectID, err)
@@ -359,10 +359,7 @@ func validatePagesPackageMetadata(
 	if extractedBytes == 0 {
 		extractedBytes = 1
 	}
-	maxFileBytes := extractedBytes
-	if maxFileBytes > agentPagesMaxFileBytes {
-		maxFileBytes = agentPagesMaxFileBytes
-	}
+	maxFileBytes := min(extractedBytes, agentPagesMaxFileBytes)
 
 	return pagesPackageLimits{
 		PackageBytes: metadata.PackageSize,

internal/apps/agent/sync/service.go

@@ -12,7 +12,7 @@ import (
 	"fmt"
 	"io"
 	"log/slog"
-	"sort"
+	"slices"
 	"strconv"
 	"strings"
 	"sync"
@@ -363,7 +363,7 @@ func referencedWAFIPGroupIDs(supportFiles []protocol.SupportFile) ([]uint, error
 	for id := range seen {
 		ids = append(ids, id)
 	}
-	sort.Slice(ids, func(i, j int) bool { return ids[i] < ids[j] })
+	slices.Sort(ids)
 	return ids, nil
 }
 

internal/apps/cap/manager.go

@@ -78,10 +78,7 @@ func (m *Manager) Redeem(ctx context.Context, token string, solutions []int, sco
 	}
 
 	now := time.Now().UnixNano() / int64(time.Millisecond)
-	nonceTTL := time.Duration(payload.Expires-now) * time.Millisecond
-	if nonceTTL < time.Second {
-		nonceTTL = time.Second
-	}
+	nonceTTL := max(time.Duration(payload.Expires-now)*time.Millisecond, time.Second)
 
 	set, err := m.store.SetNX(ctx, nonceKey, "1", nonceTTL)
 	if err != nil {

internal/apps/edge/observability/linux.go

@@ -96,10 +96,7 @@ func ReadMemInfo() (int64, int64) {
 	if total == 0 {
 		return 0, 0
 	}
-	used := total - (memAvailableKB * 1024)
-	if used < 0 {
-		used = 0
-	}
+	used := max(total-(memAvailableKB*1024), 0)
 	return total, used
 }
 
@@ -138,8 +135,8 @@ func ReadLinuxCPUStat() (uint64, uint64) {
 	if err != nil {
 		return 0, 0
 	}
-	lines := strings.Split(string(content), "\n")
-	for _, line := range lines {
+	lines := strings.SplitSeq(string(content), "\n")
+	for line := range lines {
 		if !strings.HasPrefix(line, "cpu ") {
 			continue
 		}
@@ -260,10 +257,7 @@ func StatFilesystem(path string) (int64, int64) {
 	}
 	total := multiplyUint64Int64(stat.Blocks, stat.Bsize)
 	free := multiplyUint64Int64(stat.Bavail, stat.Bsize)
-	used := total - free
-	if used < 0 {
-		used = 0
-	}
+	used := max(total-free, 0)
 	return total, used
 }
 

internal/apps/edge/updater/service.go

@@ -285,7 +285,7 @@ func (s *Service) downloadChecksum(ctx context.Context, url string, assetName st
 
 func parseSHA256Checksum(content string, assetName string) (string, error) {
 	assetName = strings.TrimSpace(assetName)
-	for _, line := range strings.Split(content, "\n") {
+	for line := range strings.SplitSeq(content, "\n") {
 		line = strings.TrimSpace(line)
 		if line == "" || strings.HasPrefix(line, "#") {
 			continue

internal/apps/flared/frpc/manager.go

@@ -203,7 +203,7 @@ func (m *Manager) restartProcess(ctx context.Context, relayID string, configPath
 			startedAt := time.Now()
 			err := cmd.Start()
 			if err == nil {
-				_ = os.WriteFile(pidPath, []byte(fmt.Sprintf("%d", cmd.Process.Pid)), frpcConfigFilePerm)
+				_ = os.WriteFile(pidPath, fmt.Appendf(nil, "%d", cmd.Process.Pid), frpcConfigFilePerm)
 				err = cmd.Wait()
 			}
 			_ = os.Remove(pidPath)

internal/apps/oauth/auth_source_resolver.go

@@ -6,6 +6,7 @@ package oauth
 import (
 	"context"
 	"errors"
+	"slices"
 	"strings"
 
 	"github.com/Rain-kl/Wavelet/internal/model"
@@ -109,10 +110,5 @@ func buildOAuthConfig(ctx context.Context, source *model.AuthSource, redirectURL
 }
 
 func containsScope(scopes []string, scope string) bool {
-	for _, item := range scopes {
-		if item == scope {
-			return true
-		}
-	}
-	return false
+	return slices.Contains(scopes, scope)
 }

internal/apps/openflare/agent/observability.go

@@ -179,18 +179,9 @@ func buildNodeAccessLogRecords(nodeID string, direct []NodeAccessLog, buffered [
 	records := make([]*model.OpenFlareAccessLog, 0, total)
 	appendLogs := func(logs []NodeAccessLog) {
 		for _, item := range logs {
-			bytesSent := item.BytesSent
-			if bytesSent < 0 {
-				bytesSent = 0
-			}
-			requestLength := item.RequestLength
-			if requestLength < 0 {
-				requestLength = 0
-			}
-			requestTimeMs := item.RequestTimeMs
-			if requestTimeMs < 0 {
-				requestTimeMs = 0
-			}
+			bytesSent := max(item.BytesSent, 0)
+			requestLength := max(item.RequestLength, 0)
+			requestTimeMs := max(item.RequestTimeMs, 0)
 			record := &model.OpenFlareAccessLog{
 				NodeID:        nodeID,
 				LoggedAt:      timeFromUnix(item.LoggedAtUnix, reportedAt),

internal/apps/openflare/agent/waf_ip_group.go

@@ -11,6 +11,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"slices"
 	"sort"
 	"strconv"
 	"strings"
@@ -97,7 +98,7 @@ func buildAgentWAFIPGroups(ctx context.Context, ids []uint) ([]WAFIPGroup, error
 	if len(ids) == 0 {
 		return []WAFIPGroup{}, nil
 	}
-	sort.Slice(ids, func(i, j int) bool { return ids[i] < ids[j] })
+	slices.Sort(ids)
 	groups, err := repository.ListOpenFlareWAFIPGroupsByIDs(ctx, ids)
 	if err != nil {
 		return nil, err
@@ -204,7 +205,7 @@ func activeConfigWAFIPGroupIDs(ctx context.Context) ([]uint, error) {
 	for id := range idSet {
 		ids = append(ids, id)
 	}
-	sort.Slice(ids, func(i, j int) bool { return ids[i] < ids[j] })
+	slices.Sort(ids)
 	return ids, nil
 }
 

internal/apps/openflare/cloudflare/client.go

@@ -192,7 +192,7 @@ func (client *HTTPClient) do(ctx context.Context, method, path string, query url
 		return err
 	}
 	requestURL := buildRequestURL(client.baseURL, path, query)
-	for attempt := 0; attempt < maxRequestAttempts; attempt++ {
+	for attempt := range maxRequestAttempts {
 		statusCode, retryHeader, responseBody, requestErr := client.send(ctx, method, requestURL, encodedBody)
 		if requestErr != nil {
 			return requestErr

internal/apps/openflare/config_version/snapshot.go

@@ -8,6 +8,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"slices"
 	"sort"
 	"strconv"
 	"strings"
@@ -429,7 +430,7 @@ func buildSnapshotWAFIPGroups(ctx context.Context, idSet map[uint]struct{}) ([]s
 	for id := range idSet {
 		ids = append(ids, id)
 	}
-	sort.Slice(ids, func(i, j int) bool { return ids[i] < ids[j] })
+	slices.Sort(ids)
 	groups, err := listWAFIPGroupsByIDs(ctx, ids)
 	if err != nil {
 		return nil, err
@@ -629,7 +630,7 @@ func buildCertificateSupportFiles(ctx context.Context, routes []snapshotRoute) (
 	for certID := range certIDSet {
 		certIDs = append(certIDs, certID)
 	}
-	sort.Slice(certIDs, func(i, j int) bool { return certIDs[i] < certIDs[j] })
+	slices.Sort(certIDs)
 	files := make([]SupportFile, 0, len(certIDs)*supportFilesPerCertificate)
 	for _, certID := range certIDs {
 		certificate, err := repository.GetTLSCertificateByID(ctx, certID)

internal/apps/openflare/option/openresty_validators.go

@@ -189,7 +189,7 @@ func validateOpenRestyCacheUseStale(key, trimmed string) error {
 		"http_500": {}, "http_502": {}, "http_503": {}, "http_504": {},
 		"http_403": {}, "http_404": {}, "http_429": {}, "off": {},
 	}
-	for _, token := range strings.Fields(trimmed) {
+	for token := range strings.FieldsSeq(trimmed) {
 		if _, ok := allowedTokens[token]; !ok {
 			return fmt.Errorf("%s 包含不支持的值 %q", key, token)
 		}

internal/apps/openflare/origin/helpers.go

@@ -34,8 +34,8 @@ func validateOriginAddress(address string) error {
 	if len(address) > maxOriginHostnameLength {
 		return errors.New(errOriginAddressInvalid)
 	}
-	labels := strings.Split(address, ".")
-	for _, label := range labels {
+	labels := strings.SplitSeq(address, ".")
+	for label := range labels {
 		if len(label) == 0 || len(label) > 63 {
 			return errors.New(errOriginAddressInvalid)
 		}

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).

internal/apps/openflare/proxy_route/helpers.go

@@ -86,8 +86,8 @@ func validateOriginAddress(address string) error {
 	if len(address) > maxOriginHostnameLength {
 		return errors.New(errProxyRouteOriginInvalid)
 	}
-	labels := strings.Split(address, ".")
-	for _, label := range labels {
+	labels := strings.SplitSeq(address, ".")
+	for label := range labels {
 		if len(label) == 0 || len(label) > 63 {
 			return errors.New(errProxyRouteOriginInvalid)
 		}
@@ -167,8 +167,8 @@ func buildOriginURLFromParts(scheme, address, port, uri string) (string, error)
 		Host:   formatOriginHost(normalizedAddress, normalizedPort),
 	}
 	if normalizedURI != "" {
-		if strings.HasPrefix(normalizedURI, "?") {
-			parsed.RawQuery = strings.TrimPrefix(normalizedURI, "?")
+		if after, ok := strings.CutPrefix(normalizedURI, "?"); ok {
+			parsed.RawQuery = after
 		} else {
 			pathQuery := strings.SplitN(normalizedURI, "?", originURIPathQueryParts)
 			parsed.Path = pathQuery[0]

internal/apps/openflare/proxy_route/logics.go

@@ -6,7 +6,7 @@ package proxy_route
 import (
 	"context"
 	"errors"
-	"sort"
+	"slices"
 	"strings"
 	"time"
 
@@ -201,7 +201,7 @@ func lockPagesProjectsForRouteMutation(tx *gorm.DB, previousProjectID uint, rout
 	if nextProjectID != 0 && nextProjectID != previousProjectID {
 		projectIDs = append(projectIDs, nextProjectID)
 	}
-	sort.Slice(projectIDs, func(i int, j int) bool { return projectIDs[i] < projectIDs[j] })
+	slices.Sort(projectIDs)
 
 	for _, projectID := range projectIDs {
 		project, err := repository.LockPagesProjectByIDTx(tx, projectID)

internal/apps/openflare/tls/obtain.go

@@ -123,7 +123,7 @@ func splitAcmeDomains(primaryDomain, otherDomains string) []string {
 	if !strings.Contains(otherDomains, "\n") && strings.Contains(otherDomains, ",") {
 		separator = ","
 	}
-	for _, domain := range strings.Split(otherDomains, separator) {
+	for domain := range strings.SplitSeq(otherDomains, separator) {
 		domain = strings.TrimSpace(domain)
 		if domain != "" {
 			domains = append(domains, domain)

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
 }
 

internal/apps/openflare/waf/graph_compile.go

@@ -5,6 +5,7 @@ package waf
 
 import (
 	"fmt"
+	"slices"
 	"sort"
 )
 
@@ -142,7 +143,7 @@ func sortedUniqueStrings(values []string) []string {
 
 func sortedUniqueUints(values []uint) []uint {
 	result := append([]uint(nil), values...)
-	sort.Slice(result, func(i, j int) bool { return result[i] < result[j] })
+	slices.Sort(result)
 	write := 0
 	for _, value := range result {
 		if write == 0 || result[write-1] != value {

internal/apps/openflare/waf/graph_validate.go

@@ -12,6 +12,7 @@ import (
 	"io"
 	"net/netip"
 	"regexp"
+	"slices"
 	"strings"
 )
 
@@ -374,12 +375,7 @@ func decodeStrictConfig(raw json.RawMessage, dst any) error {
 }
 
 func validSourceHandle(t RuleNodeType, handle string) bool {
-	for _, expected := range requiredHandles(t) {
-		if handle == expected {
-			return true
-		}
-	}
-	return false
+	return slices.Contains(requiredHandles(t), handle)
 }
 func requiredHandles(t RuleNodeType) []string {
 	switch t {

internal/apps/openflare/waf/ip_group_sync.go

@@ -11,6 +11,7 @@ import (
 	"fmt"
 	"io"
 	"log/slog"
+	"maps"
 	"net"
 	"net/http"
 	"net/netip"
@@ -325,9 +326,7 @@ func evaluateParsedIPGroupAutoConfig(ctx context.Context, config ipGroupAutoConf
 			lastSeen = time.Unix(item.LastSeenEpoch, 0).UTC()
 		}
 		statusCounts := make(map[int]int, len(item.StatusCounts))
-		for code, count := range item.StatusCounts {
-			statusCounts[code] = count
-		}
+		maps.Copy(statusCounts, item.StatusCounts)
 		accumulators[ip] = &ipGroupAutoAccumulator{
 			ip:               ip,
 			requestCount:     item.RequestCount,
@@ -479,7 +478,7 @@ func selectJSONMappingNodes(payload any, mappingRule string) ([]any, error) {
 	}
 	rule = strings.TrimPrefix(rule, "$.")
 	nodes := []any{payload}
-	for _, rawSegment := range strings.Split(rule, ".") {
+	for rawSegment := range strings.SplitSeq(rule, ".") {
 		segment := strings.TrimSpace(rawSegment)
 		if segment == "" {
 			continue

internal/apps/openflare/zone/stats.go

@@ -183,10 +183,7 @@ func emptyStatsSeries(since, until time.Time, bucketMinutes int) []StatsPoint {
 	}
 	// Cap points to keep chart readable.
 	maxPoints := 120
-	capacity := int(end.Sub(start)/bucket) + 1
-	if capacity > maxPoints {
-		capacity = maxPoints
-	}
+	capacity := min(int(end.Sub(start)/bucket)+1, maxPoints)
 	points := make([]StatsPoint, 0, capacity)
 	for cursor := start; !cursor.After(end) && len(points) < maxPoints; cursor = cursor.Add(bucket) {
 		points = append(points, StatsPoint{BucketStartedAt: cursor})

internal/apps/relay/frps/manager.go

@@ -240,7 +240,7 @@ func (m *Manager) supervise(ctx context.Context, generation uint64) {
 			continue
 		}
 
-		_ = os.WriteFile(m.pidPath, []byte(fmt.Sprintf("%d", cmd.Process.Pid)), frpsPidFilePerm)
+		_ = os.WriteFile(m.pidPath, fmt.Appendf(nil, "%d", cmd.Process.Pid), frpsPidFilePerm)
 
 		m.cmd = cmd
 		m.status = "healthy"

internal/apps/upload/ingest/helpers.go

@@ -59,8 +59,8 @@ func validateAllowedExtension(ctx context.Context, ext string) error {
 		return nil
 	}
 
-	allowedExts := strings.Split(strings.ToLower(sc.Value), ",")
-	for _, allowedExt := range allowedExts {
+	allowedExts := strings.SplitSeq(strings.ToLower(sc.Value), ",")
+	for allowedExt := range allowedExts {
 		if strings.TrimSpace(allowedExt) == ext {
 			return nil
 		}

internal/apps/upload/task/storage_migration.go

@@ -193,18 +193,18 @@ func migrateObjects(
 	const batchSize = 50
 	const migrationConcurrency = 10
 	const sha256HexLength = 64
-	var migrated int64
+	var migrated atomic.Int64
 	var lastFilePath string
 	for {
 		if err := ctx.Err(); err != nil {
-			return atomic.LoadInt64(&migrated), fmt.Errorf("storage migration canceled: %w", err)
+			return migrated.Load(), fmt.Errorf("storage migration canceled: %w", err)
 		}
 
-		task.AppendLog(ctx, "正在查询待迁移对象批次，当前已完成迁移: %d/%d", atomic.LoadInt64(&migrated), total)
+		task.AppendLog(ctx, "正在查询待迁移对象批次，当前已完成迁移: %d/%d", migrated.Load(), total)
 
 		objects, err := repository.ListDistinctActiveStorageObjects(ctx, lastFilePath, batchSize)
 		if err != nil {
-			return atomic.LoadInt64(&migrated), fmt.Errorf("query source objects: %w", err)
+			return migrated.Load(), fmt.Errorf("query source objects: %w", err)
 		}
 		if len(objects) == 0 {
 			task.AppendLog(ctx, "所有对象迁移完毕")
@@ -223,18 +223,18 @@ func migrateObjects(
 				if err := migrateSingleObject(ctx, sourceBackend, targetBackend, obj, sha256HexLength); err != nil {
 					return err
 				}
-				atomic.AddInt64(&migrated, 1)
+				migrated.Add(1)
 				return nil
 			})
 		}
 
 		if err := g.Wait(); err != nil {
-			return atomic.LoadInt64(&migrated), err
+			return migrated.Load(), err
 		}
 
-		task.AppendLog(ctx, "当前批次迁移完成。迁移进度: %d/%d", atomic.LoadInt64(&migrated), total)
+		task.AppendLog(ctx, "当前批次迁移完成。迁移进度: %d/%d", migrated.Load(), total)
 	}
-	return atomic.LoadInt64(&migrated), nil
+	return migrated.Load(), nil
 }
 
 func migrateSingleObject(

internal/apps/upload/util/media.go

@@ -4,6 +4,7 @@
 package util
 
 import (
+	"slices"
 	"strings"
 
 	"github.com/Rain-kl/Wavelet/internal/apps/upload/shared"
@@ -11,32 +12,17 @@ import (
 
 // IsImageExtension reports whether ext is a common image format.
 func IsImageExtension(ext string) bool {
-	for _, imgExt := range []string{"jpg", "jpeg", "png", "webp", "gif"} {
-		if ext == imgExt {
-			return true
-		}
-	}
-	return false
+	return slices.Contains([]string{"jpg", "jpeg", "png", "webp", "gif"}, ext)
 }
 
 // IsArchiveExtension reports whether ext is a common archive format.
 func IsArchiveExtension(ext string) bool {
-	for _, e := range []string{"zip", "rar", "7z", "tar", "gz", "tgz", "bz2", "xz"} {
-		if ext == e {
-			return true
-		}
-	}
-	return false
+	return slices.Contains([]string{"zip", "rar", "7z", "tar", "gz", "tgz", "bz2", "xz"}, ext)
 }
 
 // IsDocumentExtension reports whether ext is a common document format.
 func IsDocumentExtension(ext string) bool {
-	for _, e := range []string{"pdf", "doc", "docx", "xls", "xlsx", "ppt", "pptx", "txt", "md", "csv", "json", "yaml", "yml", "xml"} {
-		if ext == e {
-			return true
-		}
-	}
-	return false
+	return slices.Contains([]string{"pdf", "doc", "docx", "xls", "xlsx", "ppt", "pptx", "txt", "md", "csv", "json", "yaml", "yml", "xml"}, ext)
 }
 
 // NormalizeImageQuality normalizes the requested image quality query parameter.

internal/cmd/all.go

@@ -27,34 +27,28 @@ var allCmd = &cobra.Command{
 		var wg sync.WaitGroup
 
 		// 启动 API HTTP 服务
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
+		wg.Go(func() {
 			log.Println("[All] 启动 API 服务")
 			router.Serve(func() {
 				printStartupBanner(startupState{mode: "API + Worker + Scheduler", relationalDB: latestMigrationState.relationalDB, clickHouseDB: latestMigrationState.clickHouseDB, listensForHTTP: true})
 			})
-		}()
+		})
 
 		// 启动 Asynq Worker 任务处理服务
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
+		wg.Go(func() {
 			log.Println("[All] 启动 Worker 服务")
 			if err := worker.StartWorker(); err != nil {
 				log.Printf("[All] Worker 启动失败: %v\n", err)
 			}
-		}()
+		})
 
 		// 启动 Asynq 定时任务调度器
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
+		wg.Go(func() {
 			log.Println("[All] 启动 Scheduler 服务")
 			if err := scheduler.StartScheduler(); err != nil {
 				log.Printf("[All] Scheduler 启动失败: %v\n", err)
 			}
-		}()
+		})
 
 		wg.Wait()
 	},

internal/infra/config/config.go

@@ -31,10 +31,11 @@ func findConfigPath(configPath string) string {
 	if _, err := os.Stat(configPath); err == nil {
 		return configPath
 	}
-	dir := "."
-	for i := 0; i < 5; i++ {
-		dir += "/.."
-		path := dir + "/" + configPath
+	var dir strings.Builder
+	dir.WriteString(".")
+	for range 5 {
+		dir.WriteString("/..")
+		path := dir.String() + "/" + configPath
 		if _, err := os.Stat(path); err == nil {
 			return path
 		}

internal/infra/persistence/postgres_logger.go

@@ -31,26 +31,26 @@ func (l *gormZapLogger) LogMode(level gormLogger.LogLevel) gormLogger.Interface
 	return &clone
 }
 
-func (l *gormZapLogger) Info(ctx context.Context, fmt string, args ...interface{}) {
+func (l *gormZapLogger) Info(ctx context.Context, fmt string, args ...any) {
 	if l.logLevel >= gormLogger.Info {
 		logger.InfoF(ctx, fmt, args...)
 	}
 }
 
-func (l *gormZapLogger) Warn(ctx context.Context, fmt string, args ...interface{}) {
+func (l *gormZapLogger) Warn(ctx context.Context, fmt string, args ...any) {
 	if l.logLevel >= gormLogger.Warn {
 		logger.WarnF(ctx, fmt, args...)
 	}
 }
 
-func (l *gormZapLogger) Error(ctx context.Context, fmt string, args ...interface{}) {
+func (l *gormZapLogger) Error(ctx context.Context, fmt string, args ...any) {
 	if l.logLevel >= gormLogger.Error {
 		logger.ErrorF(ctx, fmt, args...)
 	}
 }
 
 // ParamsFilter 让 GORM 的 Trace 回调只接收参数化 SQL，避免绑定值被 Dialector.Explain 展开到日志。
-func (l *gormZapLogger) ParamsFilter(_ context.Context, sql string, _ ...interface{}) (string, []interface{}) {
+func (l *gormZapLogger) ParamsFilter(_ context.Context, sql string, _ ...any) (string, []any) {
 	return sql, nil
 }
 
@@ -70,7 +70,7 @@ func (l *gormZapLogger) Trace(ctx context.Context, begin time.Time, fc func() (s
 	}
 }
 
-func formatRows(rows int64) interface{} {
+func formatRows(rows int64) any {
 	if rows == -1 {
 		return "-"
 	}

internal/infra/task/executor.go

@@ -103,7 +103,7 @@ func IsFinalAttempt(ctx context.Context) bool {
 
 // AppendLog 追加日志到任务执行记录
 // 在 TaskHandler.Execute 中调用，日志会自动追加到 TaskExecution.Log 字段
-func AppendLog(ctx context.Context, format string, args ...interface{}) {
+func AppendLog(ctx context.Context, format string, args ...any) {
 	taskID := GetTaskID(ctx)
 	if taskID == "" {
 		// 上下文中没有 taskID，降级到普通日志

internal/infra/task/utils.go

@@ -15,7 +15,7 @@ type redisClientConnOpt struct {
 	options redis.Options
 }
 
-func (opt redisClientConnOpt) MakeRedisClient() interface{} {
+func (opt redisClientConnOpt) MakeRedisClient() any {
 	return redis.NewClient(&opt.options)
 }
 
@@ -23,7 +23,7 @@ type redisClusterConnOpt struct {
 	options redis.ClusterOptions
 }
 
-func (opt redisClusterConnOpt) MakeRedisClient() interface{} {
+func (opt redisClusterConnOpt) MakeRedisClient() any {
 	return redis.NewClusterClient(&opt.options)
 }
 
@@ -32,7 +32,7 @@ type redisFailoverConnOpt struct {
 	maintNotificationsEnabled bool
 }
 
-func (opt redisFailoverConnOpt) MakeRedisClient() interface{} {
+func (opt redisFailoverConnOpt) MakeRedisClient() any {
 	client := redis.NewFailoverClient(&opt.options)
 	// go-redis v9.16 does not expose maintenance notification settings on
 	// FailoverOptions, so apply the configured mode before the client is used.

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
 }
 

internal/router/middlewares.go

@@ -63,7 +63,7 @@ func loggerMiddleware() gin.HandlerFunc {
 
 func logRequest(ctx context.Context, c *gin.Context, path string, start, end time.Time, latency time.Duration) {
 	format := "[LoggerMiddleware] %s %s\nStartTime: %s\nEndTime: %s\nLatency: %d\nClientIP: %s\nResponse: %d %d"
-	args := []interface{}{
+	args := []any{
 		c.Request.Method,
 		path,
 		start.Format(time.RFC3339),
@@ -89,8 +89,8 @@ func isOriginAllowed(ctx context.Context, origin string) bool {
 	if err != nil || sc.Value == "" {
 		return false
 	}
-	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, origin) {
 			return true

internal/shared/response/response.go

@@ -16,8 +16,8 @@ type Response[T any] struct {
 // Any 用于 Swagger 文档的响应类型（非泛型）
 // swag 不支持泛型，使用此类型替代 Response[T]
 type Any struct {
-	ErrorMsg string      `json:"error_msg" example:""`
-	Data     interface{} `json:"data"`
+	ErrorMsg string `json:"error_msg" example:""`
+	Data     any    `json:"data"`
 }
 
 // APIError 统一的 API 业务错误类型，可被全局错误处理中间件捕获

pkg/cache/ram/manager.go

@@ -6,6 +6,7 @@ package ram
 import (
 	"context"
 	"errors"
+	"maps"
 	"sync"
 	"time"
 )
@@ -119,9 +120,7 @@ func Set(item CacheItem) {
 	currentMap, ok := managerCache.GetIfPresent(item.Type)
 	newMap := make(map[string]cacheEntry)
 	if ok {
-		for k, v := range currentMap {
-			newMap[k] = v
-		}
+		maps.Copy(newMap, currentMap)
 	}
 
 	var expireAt time.Time

pkg/cap/cap.go

@@ -238,14 +238,14 @@ func VerifyChallengeSolutions(token string, solutions []int, secret []byte, expe
 func Solve(token string, count, size, difficulty int) []int {
 	solutions := make([]int, count)
 	tokenFnv := fnv1a(token)
-	for i := 0; i < count; i++ {
+	for i := range count {
 		idxStr := strconv.Itoa(i + 1)
 		saltSeed := fnv1aResume(tokenFnv, idxStr)
 		targetSeed := fnv1aResume(saltSeed, "d")
 		salt := prngFromHash(saltSeed, size)
 		target := prngFromHash(targetSeed, difficulty)
 
-		for nonce := 0; nonce < 1000000; nonce++ {
+		for nonce := range 1000000 {
 			hashInput := salt + strconv.Itoa(nonce)
 			hashBytes := sha256.Sum256([]byte(hashInput))
 			hashHex := hex.EncodeToString(hashBytes[:])

pkg/geoip/country_centroid.go

@@ -194,7 +194,7 @@ func CountryCentroidByName(name string) (lat float64, lon float64, ok bool) {
 		return v.lat, v.lon, true
 	}
 	// Try comma-separated parts (city / region / country / ISO).
-	for _, part := range strings.Split(name, ",") {
+	for part := range strings.SplitSeq(name, ",") {
 		part = strings.TrimSpace(part)
 		if part == "" {
 			continue

pkg/logger/logger.go

@@ -78,25 +78,25 @@ func Init(cfg Config) {
 }
 
 // DebugF 输出 Debug 级别日志
-func DebugF(ctx context.Context, format string, args ...interface{}) {
+func DebugF(ctx context.Context, format string, args ...any) {
 	msg := fmt.Sprintf(format, args...)
 	logger.Ctx(ctx).Debug(msg, getTraceIDFields(ctx)...)
 }
 
 // InfoF 输出 Info 级别日志
-func InfoF(ctx context.Context, format string, args ...interface{}) {
+func InfoF(ctx context.Context, format string, args ...any) {
 	msg := fmt.Sprintf(format, args...)
 	logger.Ctx(ctx).Info(msg, getTraceIDFields(ctx)...)
 }
 
 // WarnF 输出 Warn 级别日志
-func WarnF(ctx context.Context, format string, args ...interface{}) {
+func WarnF(ctx context.Context, format string, args ...any) {
 	msg := fmt.Sprintf(format, args...)
 	logger.Ctx(ctx).Warn(msg, getTraceIDFields(ctx)...)
 }
 
 // ErrorF 输出 Error 级别日志
-func ErrorF(ctx context.Context, format string, args ...interface{}) {
+func ErrorF(ctx context.Context, format string, args ...any) {
 	msg := fmt.Sprintf(format, args...)
 	logger.Ctx(ctx).Error(msg, getTraceIDFields(ctx)...)
 }

pkg/logger/ringbuffer.go

@@ -141,10 +141,7 @@ func (r *LogRingBuffer) Query(cursor int, limit int) ([]LogEntry, bool) {
 	}
 
 	// 返回 cut 之前的最后 limit 条
-	start := cut - limit
-	if start < 0 {
-		start = 0
-	}
+	start := max(cut-limit, 0)
 
 	hasMore := start > 0
 	return ordered[start:cut], hasMore

pkg/mail/mail.go

@@ -55,21 +55,21 @@ func SendMailHTML(ctx context.Context, cfg Config, to string, subject, body stri
 	header["MIME-Version"] = "1.0"
 	header["Content-Type"] = "text/html; charset=UTF-8"
 
-	message := ""
+	var message strings.Builder
 	for k, v := range header {
-		message += fmt.Sprintf("%s: %s\r\n", k, v)
+		fmt.Fprintf(&message, "%s: %s\r\n", k, v)
 	}
-	message += "\r\n" + body
+	message.WriteString("\r\n" + body)
 
 	auth := smtp.PlainAuth("", cfg.Username, cfg.Password, cfg.Host)
 
 	// If using SSL port 465, we connection via TLS dial
 	if cfg.Port == smtpSSLPort {
-		return sendMailViaSSL(ctx, addr, auth, cfg, to, message)
+		return sendMailViaSSL(ctx, addr, auth, cfg, to, message.String())
 	}
 
 	// For standard port (587 / 25), use smtp.SendMail directly (handles STARTTLS automatically if server supports it)
-	err := smtp.SendMail(addr, auth, cfg.Username, []string{to}, []byte(message))
+	err := smtp.SendMail(addr, auth, cfg.Username, []string{to}, []byte(message.String()))
 	if err != nil {
 		return fmt.Errorf(errSendMailFailed, err)
 	}
@@ -127,7 +127,7 @@ func sendMailViaSSL(ctx context.Context, addr string, auth smtp.Auth, cfg Config
 // SendMailWithLog sends a test email and records a detailed SMTP connection log
 func SendMailWithLog(ctx context.Context, cfg Config, to string, subject, body string) (string, error) {
 	var logBuf bytes.Buffer
-	logLine := func(dir string, format string, args ...interface{}) {
+	logLine := func(dir string, format string, args ...any) {
 		fmt.Fprintf(&logBuf, "[%s] %s\n", dir, fmt.Sprintf(format, args...))
 	}
 
@@ -227,14 +227,14 @@ func SendMailWithLog(ctx context.Context, cfg Config, to string, subject, body s
 	header["MIME-Version"] = "1.0"
 	header["Content-Type"] = "text/html; charset=UTF-8"
 
-	message := ""
+	var message strings.Builder
 	for k, v := range header {
-		message += fmt.Sprintf("%s: %s\r\n", k, v)
+		fmt.Fprintf(&message, "%s: %s\r\n", k, v)
 	}
-	message += "\r\n" + body
+	message.WriteString("\r\n" + body)
 
 	logLine("System", "Sending message body...")
-	if _, err = w.Write([]byte(message)); err != nil {
+	if _, err = w.Write([]byte(message.String())); err != nil {
 		_ = w.Close()
 		logLine("Error", "Writing message body failed: %v", err)
 		return logBuf.String(), err

pkg/pagesarchive/path.go

@@ -66,7 +66,7 @@ func validateLogicalPathRunes(raw string) error {
 }
 
 func validateLogicalPathSegments(raw string) error {
-	for _, segment := range strings.Split(raw, "/") {
+	for segment := range strings.SplitSeq(raw, "/") {
 		if len(segment) >= 2 && segment[1] == ':' {
 			return fmt.Errorf("pages path contains a Windows drive: %s", raw)
 		}

pkg/render/openresty/render.go

@@ -414,7 +414,7 @@ func pagesFallbackPath(deployment *PagesDeployment) string {
 	if value == "/" || strings.HasSuffix(value, "/") || strings.Contains(value, "\\") || strings.ContainsAny(value, "\"';") || strings.ContainsAny(value, " \t\r\n") {
 		return indexHTML
 	}
-	for _, segment := range strings.Split(value, "/") {
+	for segment := range strings.SplitSeq(value, "/") {
 		if segment == "." || segment == ".." {
 			return indexHTML
 		}

pkg/render/openresty/status_codes.go

@@ -24,12 +24,12 @@ func ParseStatusCodeTag(tag string) (lo, hi int, err error) {
 	if tag == "" {
 		return 0, 0, fmt.Errorf("状态码标签不能为空")
 	}
-	if i := strings.IndexByte(tag, '-'); i >= 0 {
-		lo, err = strconv.Atoi(tag[:i])
+	if before, after, ok := strings.Cut(tag, "-"); ok {
+		lo, err = strconv.Atoi(before)
 		if err != nil {
 			return 0, 0, fmt.Errorf("无效状态码区间: %s", tag)
 		}
-		hi, err = strconv.Atoi(tag[i+1:])
+		hi, err = strconv.Atoi(after)
 		if err != nil {
 			return 0, 0, fmt.Errorf("无效状态码区间: %s", tag)
 		}

pkg/util/value.go

@@ -3,7 +3,7 @@ package util
 import "fmt"
 
 // Interface2String converts a string, int, or float64 value to its string representation.
-func Interface2String(inter interface{}) string {
+func Interface2String(inter any) string {
 	switch v := inter.(type) {
 	case string:
 		return v

pkg/util/version_compare.go

@@ -3,10 +3,7 @@ package util
 import "strconv"
 
 func compareVersionNumbers(left, right VersionInfo) int {
-	maxLen := len(left.Numbers)
-	if len(right.Numbers) > maxLen {
-		maxLen = len(right.Numbers)
-	}
+	maxLen := max(len(right.Numbers), len(left.Numbers))
 	for index := 0; index < maxLen; index++ {
 		leftValue := 0
 		rightValue := 0
@@ -37,10 +34,7 @@ func compareGitDescribeDistance(left, right VersionInfo) int {
 }
 
 func compareGitDescribeTails(left, right VersionInfo) int {
-	maxLen := len(left.GitDescribeTail)
-	if len(right.GitDescribeTail) > maxLen {
-		maxLen = len(right.GitDescribeTail)
-	}
+	maxLen := max(len(right.GitDescribeTail), len(left.GitDescribeTail))
 	for index := 0; index < maxLen; index++ {
 		if index >= len(left.GitDescribeTail) {
 			return -1
@@ -69,10 +63,7 @@ func comparePrereleaseIdentifiers(left, right VersionInfo) int {
 		return -1
 	}
 
-	maxLen := len(left.Prerelease)
-	if len(right.Prerelease) > maxLen {
-		maxLen = len(right.Prerelease)
-	}
+	maxLen := max(len(right.Prerelease), len(left.Prerelease))
 	for index := 0; index < maxLen; index++ {
 		if index >= len(left.Prerelease) {
 			return -1