Merge branch 'test' into dev

backend/internal/pkg/logger/config_adapter.go

+package logger
+
+import "github.com/Wei-Shaw/sub2api/internal/config"
+
+func OptionsFromConfig(cfg config.LogConfig) InitOptions {
+	return InitOptions{
+		Level:           cfg.Level,
+		Format:          cfg.Format,
+		ServiceName:     cfg.ServiceName,
+		Environment:     cfg.Environment,
+		Caller:          cfg.Caller,
+		StacktraceLevel: cfg.StacktraceLevel,
+		Output: OutputOptions{
+			ToStdout: cfg.Output.ToStdout,
+			ToFile:   cfg.Output.ToFile,
+			FilePath: cfg.Output.FilePath,
+		},
+		Rotation: RotationOptions{
+			MaxSizeMB:  cfg.Rotation.MaxSizeMB,
+			MaxBackups: cfg.Rotation.MaxBackups,
+			MaxAgeDays: cfg.Rotation.MaxAgeDays,
+			Compress:   cfg.Rotation.Compress,
+			LocalTime:  cfg.Rotation.LocalTime,
+		},
+		Sampling: SamplingOptions{
+			Enabled:    cfg.Sampling.Enabled,
+			Initial:    cfg.Sampling.Initial,
+			Thereafter: cfg.Sampling.Thereafter,
+		},
+	}
+}

backend/internal/pkg/logger/logger.go

+package logger
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"log"
+	"log/slog"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+	"gopkg.in/natefinch/lumberjack.v2"
+)
+
+type Level = zapcore.Level
+
+const (
+	LevelDebug = zapcore.DebugLevel
+	LevelInfo  = zapcore.InfoLevel
+	LevelWarn  = zapcore.WarnLevel
+	LevelError = zapcore.ErrorLevel
+	LevelFatal = zapcore.FatalLevel
+)
+
+type Sink interface {
+	WriteLogEvent(event *LogEvent)
+}
+
+type LogEvent struct {
+	Time       time.Time
+	Level      string
+	Component  string
+	Message    string
+	LoggerName string
+	Fields     map[string]any
+}
+
+var (
+	mu            sync.RWMutex
+	global        *zap.Logger
+	sugar         *zap.SugaredLogger
+	atomicLevel   zap.AtomicLevel
+	initOptions   InitOptions
+	currentSink   Sink
+	stdLogUndo    func()
+	bootstrapOnce sync.Once
+)
+
+func InitBootstrap() {
+	bootstrapOnce.Do(func() {
+		if err := Init(bootstrapOptions()); err != nil {
+			_, _ = fmt.Fprintf(os.Stderr, "logger bootstrap init failed: %v\n", err)
+		}
+	})
+}
+
+func Init(options InitOptions) error {
+	mu.Lock()
+	defer mu.Unlock()
+	return initLocked(options)
+}
+
+func initLocked(options InitOptions) error {
+	normalized := options.normalized()
+	zl, al, err := buildLogger(normalized)
+	if err != nil {
+		return err
+	}
+
+	prev := global
+	global = zl
+	sugar = zl.Sugar()
+	atomicLevel = al
+	initOptions = normalized
+
+	bridgeSlogLocked()
+	bridgeStdLogLocked()
+
+	if prev != nil {
+		_ = prev.Sync()
+	}
+	return nil
+}
+
+func Reconfigure(mutator func(*InitOptions) error) error {
+	mu.Lock()
+	defer mu.Unlock()
+	next := initOptions
+	if mutator != nil {
+		if err := mutator(&next); err != nil {
+			return err
+		}
+	}
+	return initLocked(next)
+}
+
+func SetLevel(level string) error {
+	lv, ok := parseLevel(level)
+	if !ok {
+		return fmt.Errorf("invalid log level: %s", level)
+	}
+
+	mu.Lock()
+	defer mu.Unlock()
+	atomicLevel.SetLevel(lv)
+	initOptions.Level = strings.ToLower(strings.TrimSpace(level))
+	return nil
+}
+
+func CurrentLevel() string {
+	mu.RLock()
+	defer mu.RUnlock()
+	if global == nil {
+		return "info"
+	}
+	return atomicLevel.Level().String()
+}
+
+func SetSink(sink Sink) {
+	mu.Lock()
+	defer mu.Unlock()
+	currentSink = sink
+}
+
+// WriteSinkEvent 直接写入日志 sink，不经过全局日志级别门控。
+// 用于需要“可观测性入库”与“业务输出级别”解耦的场景（例如 ops 系统日志索引）。
+func WriteSinkEvent(level, component, message string, fields map[string]any) {
+	mu.RLock()
+	sink := currentSink
+	mu.RUnlock()
+	if sink == nil {
+		return
+	}
+
+	level = strings.ToLower(strings.TrimSpace(level))
+	if level == "" {
+		level = "info"
+	}
+	component = strings.TrimSpace(component)
+	message = strings.TrimSpace(message)
+	if message == "" {
+		return
+	}
+
+	eventFields := make(map[string]any, len(fields)+1)
+	for k, v := range fields {
+		eventFields[k] = v
+	}
+	if component != "" {
+		if _, ok := eventFields["component"]; !ok {
+			eventFields["component"] = component
+		}
+	}
+
+	sink.WriteLogEvent(&LogEvent{
+		Time:       time.Now(),
+		Level:      level,
+		Component:  component,
+		Message:    message,
+		LoggerName: component,
+		Fields:     eventFields,
+	})
+}
+
+func L() *zap.Logger {
+	mu.RLock()
+	defer mu.RUnlock()
+	if global != nil {
+		return global
+	}
+	return zap.NewNop()
+}
+
+func S() *zap.SugaredLogger {
+	mu.RLock()
+	defer mu.RUnlock()
+	if sugar != nil {
+		return sugar
+	}
+	return zap.NewNop().Sugar()
+}
+
+func With(fields ...zap.Field) *zap.Logger {
+	return L().With(fields...)
+}
+
+func Sync() {
+	mu.RLock()
+	l := global
+	mu.RUnlock()
+	if l != nil {
+		_ = l.Sync()
+	}
+}
+
+func bridgeStdLogLocked() {
+	if stdLogUndo != nil {
+		stdLogUndo()
+		stdLogUndo = nil
+	}
+
+	prevFlags := log.Flags()
+	prevPrefix := log.Prefix()
+	prevWriter := log.Writer()
+
+	log.SetFlags(0)
+	log.SetPrefix("")
+	log.SetOutput(newStdLogBridge(global.Named("stdlog")))
+
+	stdLogUndo = func() {
+		log.SetOutput(prevWriter)
+		log.SetFlags(prevFlags)
+		log.SetPrefix(prevPrefix)
+	}
+}
+
+func bridgeSlogLocked() {
+	slog.SetDefault(slog.New(newSlogZapHandler(global.Named("slog"))))
+}
+
+func buildLogger(options InitOptions) (*zap.Logger, zap.AtomicLevel, error) {
+	level, _ := parseLevel(options.Level)
+	atomic := zap.NewAtomicLevelAt(level)
+
+	encoderCfg := zapcore.EncoderConfig{
+		TimeKey:        "time",
+		LevelKey:       "level",
+		NameKey:        "logger",
+		CallerKey:      "caller",
+		MessageKey:     "msg",
+		StacktraceKey:  "stacktrace",
+		LineEnding:     zapcore.DefaultLineEnding,
+		EncodeLevel:    zapcore.CapitalLevelEncoder,
+		EncodeTime:     zapcore.ISO8601TimeEncoder,
+		EncodeDuration: zapcore.MillisDurationEncoder,
+		EncodeCaller:   zapcore.ShortCallerEncoder,
+	}
+
+	var enc zapcore.Encoder
+	if options.Format == "console" {
+		enc = zapcore.NewConsoleEncoder(encoderCfg)
+	} else {
+		enc = zapcore.NewJSONEncoder(encoderCfg)
+	}
+
+	sinkCore := newSinkCore()
+	cores := make([]zapcore.Core, 0, 3)
+
+	if options.Output.ToStdout {
+		infoPriority := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
+			return lvl >= atomic.Level() && lvl < zapcore.WarnLevel
+		})
+		errPriority := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
+			return lvl >= atomic.Level() && lvl >= zapcore.WarnLevel
+		})
+		cores = append(cores, zapcore.NewCore(enc, zapcore.Lock(os.Stdout), infoPriority))
+		cores = append(cores, zapcore.NewCore(enc, zapcore.Lock(os.Stderr), errPriority))
+	}
+
+	if options.Output.ToFile {
+		fileCore, filePath, fileErr := buildFileCore(enc, atomic, options)
+		if fileErr != nil {
+			_, _ = fmt.Fprintf(os.Stderr, "time=%s level=WARN msg=\"日志文件输出初始化失败，降级为仅标准输出\" path=%s err=%v\n",
+				time.Now().Format(time.RFC3339Nano),
+				filePath,
+				fileErr,
+			)
+		} else {
+			cores = append(cores, fileCore)
+		}
+	}
+
+	if len(cores) == 0 {
+		cores = append(cores, zapcore.NewCore(enc, zapcore.Lock(os.Stdout), atomic))
+	}
+
+	core := zapcore.NewTee(cores...)
+	if options.Sampling.Enabled {
+		core = zapcore.NewSamplerWithOptions(core, samplingTick(), options.Sampling.Initial, options.Sampling.Thereafter)
+	}
+	core = sinkCore.Wrap(core)
+
+	stacktraceLevel, _ := parseStacktraceLevel(options.StacktraceLevel)
+	zapOpts := make([]zap.Option, 0, 5)
+	if options.Caller {
+		zapOpts = append(zapOpts, zap.AddCaller())
+	}
+	if stacktraceLevel <= zapcore.FatalLevel {
+		zapOpts = append(zapOpts, zap.AddStacktrace(stacktraceLevel))
+	}
+
+	logger := zap.New(core, zapOpts...).With(
+		zap.String("service", options.ServiceName),
+		zap.String("env", options.Environment),
+	)
+	return logger, atomic, nil
+}
+
+func buildFileCore(enc zapcore.Encoder, atomic zap.AtomicLevel, options InitOptions) (zapcore.Core, string, error) {
+	filePath := options.Output.FilePath
+	if strings.TrimSpace(filePath) == "" {
+		filePath = resolveLogFilePath("")
+	}
+
+	dir := filepath.Dir(filePath)
+	if err := os.MkdirAll(dir, 0o755); err != nil {
+		return nil, filePath, err
+	}
+	lj := &lumberjack.Logger{
+		Filename:   filePath,
+		MaxSize:    options.Rotation.MaxSizeMB,
+		MaxBackups: options.Rotation.MaxBackups,
+		MaxAge:     options.Rotation.MaxAgeDays,
+		Compress:   options.Rotation.Compress,
+		LocalTime:  options.Rotation.LocalTime,
+	}
+	return zapcore.NewCore(enc, zapcore.AddSync(lj), atomic), filePath, nil
+}
+
+type sinkCore struct {
+	core   zapcore.Core
+	fields []zapcore.Field
+}
+
+func newSinkCore() *sinkCore {
+	return &sinkCore{}
+}
+
+func (s *sinkCore) Wrap(core zapcore.Core) zapcore.Core {
+	cp := *s
+	cp.core = core
+	return &cp
+}
+
+func (s *sinkCore) Enabled(level zapcore.Level) bool {
+	return s.core.Enabled(level)
+}
+
+func (s *sinkCore) With(fields []zapcore.Field) zapcore.Core {
+	nextFields := append([]zapcore.Field{}, s.fields...)
+	nextFields = append(nextFields, fields...)
+	return &sinkCore{
+		core:   s.core.With(fields),
+		fields: nextFields,
+	}
+}
+
+func (s *sinkCore) Check(entry zapcore.Entry, ce *zapcore.CheckedEntry) *zapcore.CheckedEntry {
+	if s.Enabled(entry.Level) {
+		return ce.AddCore(entry, s)
+	}
+	return ce
+}
+
+func (s *sinkCore) Write(entry zapcore.Entry, fields []zapcore.Field) error {
+	if err := s.core.Write(entry, fields); err != nil {
+		return err
+	}
+
+	mu.RLock()
+	sink := currentSink
+	mu.RUnlock()
+	if sink == nil {
+		return nil
+	}
+
+	enc := zapcore.NewMapObjectEncoder()
+	for _, f := range s.fields {
+		f.AddTo(enc)
+	}
+	for _, f := range fields {
+		f.AddTo(enc)
+	}
+
+	event := &LogEvent{
+		Time:       entry.Time,
+		Level:      strings.ToLower(entry.Level.String()),
+		Component:  entry.LoggerName,
+		Message:    entry.Message,
+		LoggerName: entry.LoggerName,
+		Fields:     enc.Fields,
+	}
+	sink.WriteLogEvent(event)
+	return nil
+}
+
+func (s *sinkCore) Sync() error {
+	return s.core.Sync()
+}
+
+type stdLogBridge struct {
+	logger *zap.Logger
+}
+
+func newStdLogBridge(l *zap.Logger) io.Writer {
+	if l == nil {
+		l = zap.NewNop()
+	}
+	return &stdLogBridge{logger: l}
+}
+
+func (b *stdLogBridge) Write(p []byte) (int, error) {
+	msg := normalizeStdLogMessage(string(p))
+	if msg == "" {
+		return len(p), nil
+	}
+
+	level := inferStdLogLevel(msg)
+	entry := b.logger.WithOptions(zap.AddCallerSkip(4))
+
+	switch level {
+	case LevelDebug:
+		entry.Debug(msg, zap.Bool("legacy_stdlog", true))
+	case LevelWarn:
+		entry.Warn(msg, zap.Bool("legacy_stdlog", true))
+	case LevelError, LevelFatal:
+		entry.Error(msg, zap.Bool("legacy_stdlog", true))
+	default:
+		entry.Info(msg, zap.Bool("legacy_stdlog", true))
+	}
+	return len(p), nil
+}
+
+func normalizeStdLogMessage(raw string) string {
+	msg := strings.TrimSpace(strings.ReplaceAll(raw, "\n", " "))
+	if msg == "" {
+		return ""
+	}
+	return strings.Join(strings.Fields(msg), " ")
+}
+
+func inferStdLogLevel(msg string) Level {
+	lower := strings.ToLower(strings.TrimSpace(msg))
+	if lower == "" {
+		return LevelInfo
+	}
+
+	if strings.HasPrefix(lower, "[debug]") || strings.HasPrefix(lower, "debug:") {
+		return LevelDebug
+	}
+	if strings.HasPrefix(lower, "[warn]") || strings.HasPrefix(lower, "[warning]") || strings.HasPrefix(lower, "warn:") || strings.HasPrefix(lower, "warning:") {
+		return LevelWarn
+	}
+	if strings.HasPrefix(lower, "[error]") || strings.HasPrefix(lower, "error:") || strings.HasPrefix(lower, "fatal:") || strings.HasPrefix(lower, "panic:") {
+		return LevelError
+	}
+
+	if strings.Contains(lower, " failed") || strings.Contains(lower, "error") || strings.Contains(lower, "panic") || strings.Contains(lower, "fatal") {
+		return LevelError
+	}
+	if strings.Contains(lower, "warning") || strings.Contains(lower, "warn") || strings.Contains(lower, " retry") || strings.Contains(lower, " queue full") || strings.Contains(lower, "fallback") {
+		return LevelWarn
+	}
+	return LevelInfo
+}
+
+// LegacyPrintf 用于平滑迁移历史的 printf 风格日志到结构化 logger。
+func LegacyPrintf(component, format string, args ...any) {
+	msg := normalizeStdLogMessage(fmt.Sprintf(format, args...))
+	if msg == "" {
+		return
+	}
+
+	mu.RLock()
+	initialized := global != nil
+	mu.RUnlock()
+	if !initialized {
+		// 在日志系统未初始化前，回退到标准库 log，避免测试/工具链丢日志。
+		log.Print(msg)
+		return
+	}
+
+	l := L()
+	if component != "" {
+		l = l.With(zap.String("component", component))
+	}
+	l = l.WithOptions(zap.AddCallerSkip(1))
+
+	switch inferStdLogLevel(msg) {
+	case LevelDebug:
+		l.Debug(msg, zap.Bool("legacy_printf", true))
+	case LevelWarn:
+		l.Warn(msg, zap.Bool("legacy_printf", true))
+	case LevelError, LevelFatal:
+		l.Error(msg, zap.Bool("legacy_printf", true))
+	default:
+		l.Info(msg, zap.Bool("legacy_printf", true))
+	}
+}
+
+type contextKey string
+
+const loggerContextKey contextKey = "ctx_logger"
+
+func IntoContext(ctx context.Context, l *zap.Logger) context.Context {
+	if ctx == nil {
+		ctx = context.Background()
+	}
+	if l == nil {
+		l = L()
+	}
+	return context.WithValue(ctx, loggerContextKey, l)
+}
+
+func FromContext(ctx context.Context) *zap.Logger {
+	if ctx == nil {
+		return L()
+	}
+	if l, ok := ctx.Value(loggerContextKey).(*zap.Logger); ok && l != nil {
+		return l
+	}
+	return L()
+}

backend/internal/pkg/logger/logger_test.go

+package logger
+
+import (
+	"encoding/json"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestInit_DualOutput(t *testing.T) {
+	tmpDir := t.TempDir()
+	logPath := filepath.Join(tmpDir, "logs", "sub2api.log")
+
+	origStdout := os.Stdout
+	origStderr := os.Stderr
+	stdoutR, stdoutW, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stdout pipe: %v", err)
+	}
+	stderrR, stderrW, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stderr pipe: %v", err)
+	}
+	os.Stdout = stdoutW
+	os.Stderr = stderrW
+	t.Cleanup(func() {
+		os.Stdout = origStdout
+		os.Stderr = origStderr
+		_ = stdoutR.Close()
+		_ = stderrR.Close()
+		_ = stdoutW.Close()
+		_ = stderrW.Close()
+	})
+
+	err = Init(InitOptions{
+		Level:       "debug",
+		Format:      "json",
+		ServiceName: "sub2api",
+		Environment: "test",
+		Output: OutputOptions{
+			ToStdout: true,
+			ToFile:   true,
+			FilePath: logPath,
+		},
+		Rotation: RotationOptions{
+			MaxSizeMB:  10,
+			MaxBackups: 2,
+			MaxAgeDays: 1,
+		},
+		Sampling: SamplingOptions{Enabled: false},
+	})
+	if err != nil {
+		t.Fatalf("Init() error: %v", err)
+	}
+
+	L().Info("dual-output-info")
+	L().Warn("dual-output-warn")
+	Sync()
+
+	_ = stdoutW.Close()
+	_ = stderrW.Close()
+	stdoutBytes, _ := io.ReadAll(stdoutR)
+	stderrBytes, _ := io.ReadAll(stderrR)
+	stdoutText := string(stdoutBytes)
+	stderrText := string(stderrBytes)
+
+	if !strings.Contains(stdoutText, "dual-output-info") {
+		t.Fatalf("stdout missing info log: %s", stdoutText)
+	}
+	if !strings.Contains(stderrText, "dual-output-warn") {
+		t.Fatalf("stderr missing warn log: %s", stderrText)
+	}
+
+	fileBytes, err := os.ReadFile(logPath)
+	if err != nil {
+		t.Fatalf("read log file: %v", err)
+	}
+	fileText := string(fileBytes)
+	if !strings.Contains(fileText, "dual-output-info") || !strings.Contains(fileText, "dual-output-warn") {
+		t.Fatalf("file missing logs: %s", fileText)
+	}
+}
+
+func TestInit_FileOutputFailureDowngrade(t *testing.T) {
+	origStdout := os.Stdout
+	origStderr := os.Stderr
+	_, stdoutW, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stdout pipe: %v", err)
+	}
+	stderrR, stderrW, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stderr pipe: %v", err)
+	}
+	os.Stdout = stdoutW
+	os.Stderr = stderrW
+	t.Cleanup(func() {
+		os.Stdout = origStdout
+		os.Stderr = origStderr
+		_ = stdoutW.Close()
+		_ = stderrR.Close()
+		_ = stderrW.Close()
+	})
+
+	err = Init(InitOptions{
+		Level:  "info",
+		Format: "json",
+		Output: OutputOptions{
+			ToStdout: true,
+			ToFile:   true,
+			FilePath: filepath.Join(os.DevNull, "logs", "sub2api.log"),
+		},
+		Rotation: RotationOptions{
+			MaxSizeMB:  10,
+			MaxBackups: 1,
+			MaxAgeDays: 1,
+		},
+	})
+	if err != nil {
+		t.Fatalf("Init() should downgrade instead of failing, got: %v", err)
+	}
+
+	_ = stderrW.Close()
+	stderrBytes, _ := io.ReadAll(stderrR)
+	if !strings.Contains(string(stderrBytes), "日志文件输出初始化失败") {
+		t.Fatalf("stderr should contain fallback warning, got: %s", string(stderrBytes))
+	}
+}
+
+func TestInit_CallerShouldPointToCallsite(t *testing.T) {
+	origStdout := os.Stdout
+	origStderr := os.Stderr
+	stdoutR, stdoutW, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stdout pipe: %v", err)
+	}
+	_, stderrW, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stderr pipe: %v", err)
+	}
+	os.Stdout = stdoutW
+	os.Stderr = stderrW
+	t.Cleanup(func() {
+		os.Stdout = origStdout
+		os.Stderr = origStderr
+		_ = stdoutR.Close()
+		_ = stdoutW.Close()
+		_ = stderrW.Close()
+	})
+
+	if err := Init(InitOptions{
+		Level:       "info",
+		Format:      "json",
+		ServiceName: "sub2api",
+		Environment: "test",
+		Caller:      true,
+		Output: OutputOptions{
+			ToStdout: true,
+			ToFile:   false,
+		},
+		Sampling: SamplingOptions{Enabled: false},
+	}); err != nil {
+		t.Fatalf("Init() error: %v", err)
+	}
+
+	L().Info("caller-check")
+	Sync()
+	_ = stdoutW.Close()
+	logBytes, _ := io.ReadAll(stdoutR)
+
+	var line string
+	for _, item := range strings.Split(string(logBytes), "\n") {
+		if strings.Contains(item, "caller-check") {
+			line = item
+			break
+		}
+	}
+	if line == "" {
+		t.Fatalf("log output missing caller-check: %s", string(logBytes))
+	}
+
+	var payload map[string]any
+	if err := json.Unmarshal([]byte(line), &payload); err != nil {
+		t.Fatalf("parse log json failed: %v, line=%s", err, line)
+	}
+	caller, _ := payload["caller"].(string)
+	if !strings.Contains(caller, "logger_test.go:") {
+		t.Fatalf("caller should point to this test file, got: %s", caller)
+	}
+}

backend/internal/pkg/logger/options.go

+package logger
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+const (
+	// DefaultContainerLogPath 为容器内默认日志文件路径。
+	DefaultContainerLogPath = "/app/data/logs/sub2api.log"
+	defaultLogFilename      = "sub2api.log"
+)
+
+type InitOptions struct {
+	Level           string
+	Format          string
+	ServiceName     string
+	Environment     string
+	Caller          bool
+	StacktraceLevel string
+	Output          OutputOptions
+	Rotation        RotationOptions
+	Sampling        SamplingOptions
+}
+
+type OutputOptions struct {
+	ToStdout bool
+	ToFile   bool
+	FilePath string
+}
+
+type RotationOptions struct {
+	MaxSizeMB  int
+	MaxBackups int
+	MaxAgeDays int
+	Compress   bool
+	LocalTime  bool
+}
+
+type SamplingOptions struct {
+	Enabled    bool
+	Initial    int
+	Thereafter int
+}
+
+func (o InitOptions) normalized() InitOptions {
+	out := o
+	out.Level = strings.ToLower(strings.TrimSpace(out.Level))
+	if out.Level == "" {
+		out.Level = "info"
+	}
+	out.Format = strings.ToLower(strings.TrimSpace(out.Format))
+	if out.Format == "" {
+		out.Format = "console"
+	}
+	out.ServiceName = strings.TrimSpace(out.ServiceName)
+	if out.ServiceName == "" {
+		out.ServiceName = "sub2api"
+	}
+	out.Environment = strings.TrimSpace(out.Environment)
+	if out.Environment == "" {
+		out.Environment = "production"
+	}
+	out.StacktraceLevel = strings.ToLower(strings.TrimSpace(out.StacktraceLevel))
+	if out.StacktraceLevel == "" {
+		out.StacktraceLevel = "error"
+	}
+	if !out.Output.ToStdout && !out.Output.ToFile {
+		out.Output.ToStdout = true
+	}
+	out.Output.FilePath = resolveLogFilePath(out.Output.FilePath)
+	if out.Rotation.MaxSizeMB <= 0 {
+		out.Rotation.MaxSizeMB = 100
+	}
+	if out.Rotation.MaxBackups < 0 {
+		out.Rotation.MaxBackups = 10
+	}
+	if out.Rotation.MaxAgeDays < 0 {
+		out.Rotation.MaxAgeDays = 7
+	}
+	if out.Sampling.Enabled {
+		if out.Sampling.Initial <= 0 {
+			out.Sampling.Initial = 100
+		}
+		if out.Sampling.Thereafter <= 0 {
+			out.Sampling.Thereafter = 100
+		}
+	}
+	return out
+}
+
+func resolveLogFilePath(explicit string) string {
+	explicit = strings.TrimSpace(explicit)
+	if explicit != "" {
+		return explicit
+	}
+	dataDir := strings.TrimSpace(os.Getenv("DATA_DIR"))
+	if dataDir != "" {
+		return filepath.Join(dataDir, "logs", defaultLogFilename)
+	}
+	return DefaultContainerLogPath
+}
+
+func bootstrapOptions() InitOptions {
+	return InitOptions{
+		Level:       "info",
+		Format:      "console",
+		ServiceName: "sub2api",
+		Environment: "bootstrap",
+		Output: OutputOptions{
+			ToStdout: true,
+			ToFile:   false,
+		},
+		Rotation: RotationOptions{
+			MaxSizeMB:  100,
+			MaxBackups: 10,
+			MaxAgeDays: 7,
+			Compress:   true,
+			LocalTime:  true,
+		},
+		Sampling: SamplingOptions{
+			Enabled:    false,
+			Initial:    100,
+			Thereafter: 100,
+		},
+	}
+}
+
+func parseLevel(level string) (Level, bool) {
+	switch strings.ToLower(strings.TrimSpace(level)) {
+	case "debug":
+		return LevelDebug, true
+	case "info":
+		return LevelInfo, true
+	case "warn":
+		return LevelWarn, true
+	case "error":
+		return LevelError, true
+	default:
+		return LevelInfo, false
+	}
+}
+
+func parseStacktraceLevel(level string) (Level, bool) {
+	switch strings.ToLower(strings.TrimSpace(level)) {
+	case "none":
+		return LevelFatal + 1, true
+	case "error":
+		return LevelError, true
+	case "fatal":
+		return LevelFatal, true
+	default:
+		return LevelError, false
+	}
+}
+
+func samplingTick() time.Duration {
+	return time.Second
+}

backend/internal/pkg/logger/options_test.go

+package logger
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+func TestResolveLogFilePath_Default(t *testing.T) {
+	t.Setenv("DATA_DIR", "")
+	got := resolveLogFilePath("")
+	if got != DefaultContainerLogPath {
+		t.Fatalf("resolveLogFilePath() = %q, want %q", got, DefaultContainerLogPath)
+	}
+}
+
+func TestResolveLogFilePath_WithDataDir(t *testing.T) {
+	t.Setenv("DATA_DIR", "/tmp/sub2api-data")
+	got := resolveLogFilePath("")
+	want := filepath.Join("/tmp/sub2api-data", "logs", "sub2api.log")
+	if got != want {
+		t.Fatalf("resolveLogFilePath() = %q, want %q", got, want)
+	}
+}
+
+func TestResolveLogFilePath_ExplicitPath(t *testing.T) {
+	t.Setenv("DATA_DIR", "/tmp/ignore")
+	got := resolveLogFilePath("/var/log/custom.log")
+	if got != "/var/log/custom.log" {
+		t.Fatalf("resolveLogFilePath() = %q, want explicit path", got)
+	}
+}
+
+func TestNormalizedOptions_InvalidFallback(t *testing.T) {
+	t.Setenv("DATA_DIR", "")
+	opts := InitOptions{
+		Level:           "TRACE",
+		Format:          "TEXT",
+		ServiceName:     "",
+		Environment:     "",
+		StacktraceLevel: "panic",
+		Output: OutputOptions{
+			ToStdout: false,
+			ToFile:   false,
+		},
+		Rotation: RotationOptions{
+			MaxSizeMB:  0,
+			MaxBackups: -1,
+			MaxAgeDays: -1,
+		},
+		Sampling: SamplingOptions{
+			Enabled:    true,
+			Initial:    0,
+			Thereafter: 0,
+		},
+	}
+	out := opts.normalized()
+	if out.Level != "trace" {
+		// normalized 仅做 trim/lower，不做校验；校验在 config 层。
+		t.Fatalf("normalized level should preserve value for upstream validation, got %q", out.Level)
+	}
+	if !out.Output.ToStdout {
+		t.Fatalf("normalized output should fallback to stdout")
+	}
+	if out.Output.FilePath != DefaultContainerLogPath {
+		t.Fatalf("normalized file path = %q", out.Output.FilePath)
+	}
+	if out.Rotation.MaxSizeMB != 100 {
+		t.Fatalf("normalized max_size_mb = %d", out.Rotation.MaxSizeMB)
+	}
+	if out.Rotation.MaxBackups != 10 {
+		t.Fatalf("normalized max_backups = %d", out.Rotation.MaxBackups)
+	}
+	if out.Rotation.MaxAgeDays != 7 {
+		t.Fatalf("normalized max_age_days = %d", out.Rotation.MaxAgeDays)
+	}
+	if out.Sampling.Initial != 100 || out.Sampling.Thereafter != 100 {
+		t.Fatalf("normalized sampling defaults invalid: %+v", out.Sampling)
+	}
+}
+
+func TestBuildFileCore_InvalidPathFallback(t *testing.T) {
+	t.Setenv("DATA_DIR", "")
+	opts := bootstrapOptions()
+	opts.Output.ToFile = true
+	opts.Output.FilePath = filepath.Join(os.DevNull, "logs", "sub2api.log")
+	encoderCfg := zapcore.EncoderConfig{
+		TimeKey:     "time",
+		LevelKey:    "level",
+		MessageKey:  "msg",
+		EncodeTime:  zapcore.ISO8601TimeEncoder,
+		EncodeLevel: zapcore.CapitalLevelEncoder,
+	}
+	encoder := zapcore.NewJSONEncoder(encoderCfg)
+	_, _, err := buildFileCore(encoder, zap.NewAtomicLevel(), opts)
+	if err == nil {
+		t.Fatalf("buildFileCore() expected error for invalid path")
+	}
+}

backend/internal/pkg/logger/slog_handler.go

+package logger
+
+import (
+	"context"
+	"log/slog"
+	"strings"
+	"time"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+type slogZapHandler struct {
+	logger *zap.Logger
+	attrs  []slog.Attr
+	groups []string
+}
+
+func newSlogZapHandler(logger *zap.Logger) slog.Handler {
+	if logger == nil {
+		logger = zap.NewNop()
+	}
+	return &slogZapHandler{
+		logger: logger,
+		attrs:  make([]slog.Attr, 0, 8),
+		groups: make([]string, 0, 4),
+	}
+}
+
+func (h *slogZapHandler) Enabled(_ context.Context, level slog.Level) bool {
+	switch {
+	case level >= slog.LevelError:
+		return h.logger.Core().Enabled(LevelError)
+	case level >= slog.LevelWarn:
+		return h.logger.Core().Enabled(LevelWarn)
+	case level <= slog.LevelDebug:
+		return h.logger.Core().Enabled(LevelDebug)
+	default:
+		return h.logger.Core().Enabled(LevelInfo)
+	}
+}
+
+func (h *slogZapHandler) Handle(_ context.Context, record slog.Record) error {
+	fields := make([]zap.Field, 0, len(h.attrs)+record.NumAttrs()+3)
+	fields = append(fields, slogAttrsToZapFields(h.groups, h.attrs)...)
+	record.Attrs(func(attr slog.Attr) bool {
+		fields = append(fields, slogAttrToZapField(h.groups, attr))
+		return true
+	})
+
+	entry := h.logger.With(fields...)
+	switch {
+	case record.Level >= slog.LevelError:
+		entry.Error(record.Message)
+	case record.Level >= slog.LevelWarn:
+		entry.Warn(record.Message)
+	case record.Level <= slog.LevelDebug:
+		entry.Debug(record.Message)
+	default:
+		entry.Info(record.Message)
+	}
+	return nil
+}
+
+func (h *slogZapHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
+	next := *h
+	next.attrs = append(append([]slog.Attr{}, h.attrs...), attrs...)
+	return &next
+}
+
+func (h *slogZapHandler) WithGroup(name string) slog.Handler {
+	name = strings.TrimSpace(name)
+	if name == "" {
+		return h
+	}
+	next := *h
+	next.groups = append(append([]string{}, h.groups...), name)
+	return &next
+}
+
+func slogAttrsToZapFields(groups []string, attrs []slog.Attr) []zap.Field {
+	fields := make([]zap.Field, 0, len(attrs))
+	for _, attr := range attrs {
+		fields = append(fields, slogAttrToZapField(groups, attr))
+	}
+	return fields
+}
+
+func slogAttrToZapField(groups []string, attr slog.Attr) zap.Field {
+	if len(groups) > 0 {
+		attr.Key = strings.Join(append(append([]string{}, groups...), attr.Key), ".")
+	}
+	value := attr.Value.Resolve()
+	switch value.Kind() {
+	case slog.KindBool:
+		return zap.Bool(attr.Key, value.Bool())
+	case slog.KindInt64:
+		return zap.Int64(attr.Key, value.Int64())
+	case slog.KindUint64:
+		return zap.Uint64(attr.Key, value.Uint64())
+	case slog.KindFloat64:
+		return zap.Float64(attr.Key, value.Float64())
+	case slog.KindDuration:
+		return zap.Duration(attr.Key, value.Duration())
+	case slog.KindTime:
+		return zap.Time(attr.Key, value.Time())
+	case slog.KindString:
+		return zap.String(attr.Key, value.String())
+	case slog.KindGroup:
+		groupFields := make([]zap.Field, 0, len(value.Group()))
+		for _, nested := range value.Group() {
+			groupFields = append(groupFields, slogAttrToZapField(nil, nested))
+		}
+		return zap.Object(attr.Key, zapObjectFields(groupFields))
+	case slog.KindAny:
+		if t, ok := value.Any().(time.Time); ok {
+			return zap.Time(attr.Key, t)
+		}
+		return zap.Any(attr.Key, value.Any())
+	default:
+		return zap.String(attr.Key, value.String())
+	}
+}
+
+type zapObjectFields []zap.Field
+
+func (z zapObjectFields) MarshalLogObject(enc zapcore.ObjectEncoder) error {
+	for _, field := range z {
+		field.AddTo(enc)
+	}
+	return nil
+}

backend/internal/pkg/logger/slog_handler_test.go

+package logger
+
+import (
+	"context"
+	"log/slog"
+	"testing"
+	"time"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+type captureState struct {
+	writes []capturedWrite
+}
+
+type capturedWrite struct {
+	entry  zapcore.Entry
+	fields []zapcore.Field
+}
+
+type captureCore struct {
+	state      *captureState
+	withFields []zapcore.Field
+}
+
+func newCaptureCore() *captureCore {
+	return &captureCore{state: &captureState{}}
+}
+
+func (c *captureCore) Enabled(zapcore.Level) bool {
+	return true
+}
+
+func (c *captureCore) With(fields []zapcore.Field) zapcore.Core {
+	nextFields := make([]zapcore.Field, 0, len(c.withFields)+len(fields))
+	nextFields = append(nextFields, c.withFields...)
+	nextFields = append(nextFields, fields...)
+	return &captureCore{
+		state:      c.state,
+		withFields: nextFields,
+	}
+}
+
+func (c *captureCore) Check(entry zapcore.Entry, ce *zapcore.CheckedEntry) *zapcore.CheckedEntry {
+	return ce.AddCore(entry, c)
+}
+
+func (c *captureCore) Write(entry zapcore.Entry, fields []zapcore.Field) error {
+	allFields := make([]zapcore.Field, 0, len(c.withFields)+len(fields))
+	allFields = append(allFields, c.withFields...)
+	allFields = append(allFields, fields...)
+	c.state.writes = append(c.state.writes, capturedWrite{
+		entry:  entry,
+		fields: allFields,
+	})
+	return nil
+}
+
+func (c *captureCore) Sync() error {
+	return nil
+}
+
+func TestSlogZapHandler_Handle_DoesNotAppendTimeField(t *testing.T) {
+	core := newCaptureCore()
+	handler := newSlogZapHandler(zap.New(core))
+
+	record := slog.NewRecord(time.Date(2026, 1, 1, 12, 0, 0, 0, time.UTC), slog.LevelInfo, "hello", 0)
+	record.AddAttrs(slog.String("component", "http.access"))
+
+	if err := handler.Handle(context.Background(), record); err != nil {
+		t.Fatalf("handle slog record: %v", err)
+	}
+	if len(core.state.writes) != 1 {
+		t.Fatalf("write calls = %d, want 1", len(core.state.writes))
+	}
+
+	var hasComponent bool
+	for _, field := range core.state.writes[0].fields {
+		if field.Key == "time" {
+			t.Fatalf("unexpected duplicate time field in slog adapter output")
+		}
+		if field.Key == "component" {
+			hasComponent = true
+		}
+	}
+	if !hasComponent {
+		t.Fatalf("component field should be preserved")
+	}
+}

backend/internal/pkg/logger/stdlog_bridge_test.go

+package logger
+
+import (
+	"io"
+	"log"
+	"os"
+	"strings"
+	"testing"
+)
+
+func TestInferStdLogLevel(t *testing.T) {
+	cases := []struct {
+		msg  string
+		want Level
+	}{
+		{msg: "Warning: queue full", want: LevelWarn},
+		{msg: "Forward request failed: timeout", want: LevelError},
+		{msg: "[ERROR] upstream unavailable", want: LevelError},
+		{msg: "service started", want: LevelInfo},
+		{msg: "debug: cache miss", want: LevelDebug},
+	}
+
+	for _, tc := range cases {
+		got := inferStdLogLevel(tc.msg)
+		if got != tc.want {
+			t.Fatalf("inferStdLogLevel(%q)=%v want=%v", tc.msg, got, tc.want)
+		}
+	}
+}
+
+func TestNormalizeStdLogMessage(t *testing.T) {
+	raw := "  [TokenRefresh]  cycle complete \n total=1   failed=0 \n"
+	got := normalizeStdLogMessage(raw)
+	want := "[TokenRefresh] cycle complete total=1 failed=0"
+	if got != want {
+		t.Fatalf("normalizeStdLogMessage()=%q want=%q", got, want)
+	}
+}
+
+func TestStdLogBridgeRoutesLevels(t *testing.T) {
+	origStdout := os.Stdout
+	origStderr := os.Stderr
+	stdoutR, stdoutW, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stdout pipe: %v", err)
+	}
+	stderrR, stderrW, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stderr pipe: %v", err)
+	}
+	os.Stdout = stdoutW
+	os.Stderr = stderrW
+	t.Cleanup(func() {
+		os.Stdout = origStdout
+		os.Stderr = origStderr
+		_ = stdoutR.Close()
+		_ = stdoutW.Close()
+		_ = stderrR.Close()
+		_ = stderrW.Close()
+	})
+
+	if err := Init(InitOptions{
+		Level:       "debug",
+		Format:      "json",
+		ServiceName: "sub2api",
+		Environment: "test",
+		Output: OutputOptions{
+			ToStdout: true,
+			ToFile:   false,
+		},
+		Sampling: SamplingOptions{Enabled: false},
+	}); err != nil {
+		t.Fatalf("Init() error: %v", err)
+	}
+
+	log.Printf("service started")
+	log.Printf("Warning: queue full")
+	log.Printf("Forward request failed: timeout")
+	Sync()
+
+	_ = stdoutW.Close()
+	_ = stderrW.Close()
+	stdoutBytes, _ := io.ReadAll(stdoutR)
+	stderrBytes, _ := io.ReadAll(stderrR)
+	stdoutText := string(stdoutBytes)
+	stderrText := string(stderrBytes)
+
+	if !strings.Contains(stdoutText, "service started") {
+		t.Fatalf("stdout missing info log: %s", stdoutText)
+	}
+	if !strings.Contains(stderrText, "Warning: queue full") {
+		t.Fatalf("stderr missing warn log: %s", stderrText)
+	}
+	if !strings.Contains(stderrText, "Forward request failed: timeout") {
+		t.Fatalf("stderr missing error log: %s", stderrText)
+	}
+	if !strings.Contains(stderrText, "\"legacy_stdlog\":true") {
+		t.Fatalf("stderr missing legacy_stdlog marker: %s", stderrText)
+	}
+}
+
+func TestLegacyPrintfRoutesLevels(t *testing.T) {
+	origStdout := os.Stdout
+	origStderr := os.Stderr
+	stdoutR, stdoutW, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stdout pipe: %v", err)
+	}
+	stderrR, stderrW, err := os.Pipe()
+	if err != nil {
+		t.Fatalf("create stderr pipe: %v", err)
+	}
+	os.Stdout = stdoutW
+	os.Stderr = stderrW
+	t.Cleanup(func() {
+		os.Stdout = origStdout
+		os.Stderr = origStderr
+		_ = stdoutR.Close()
+		_ = stdoutW.Close()
+		_ = stderrR.Close()
+		_ = stderrW.Close()
+	})
+
+	if err := Init(InitOptions{
+		Level:       "debug",
+		Format:      "json",
+		ServiceName: "sub2api",
+		Environment: "test",
+		Output: OutputOptions{
+			ToStdout: true,
+			ToFile:   false,
+		},
+		Sampling: SamplingOptions{Enabled: false},
+	}); err != nil {
+		t.Fatalf("Init() error: %v", err)
+	}
+
+	LegacyPrintf("service.test", "request started")
+	LegacyPrintf("service.test", "Warning: queue full")
+	LegacyPrintf("service.test", "forward failed: timeout")
+	Sync()
+
+	_ = stdoutW.Close()
+	_ = stderrW.Close()
+	stdoutBytes, _ := io.ReadAll(stdoutR)
+	stderrBytes, _ := io.ReadAll(stderrR)
+	stdoutText := string(stdoutBytes)
+	stderrText := string(stderrBytes)
+
+	if !strings.Contains(stdoutText, "request started") {
+		t.Fatalf("stdout missing info log: %s", stdoutText)
+	}
+	if !strings.Contains(stderrText, "Warning: queue full") {
+		t.Fatalf("stderr missing warn log: %s", stderrText)
+	}
+	if !strings.Contains(stderrText, "forward failed: timeout") {
+		t.Fatalf("stderr missing error log: %s", stderrText)
+	}
+	if !strings.Contains(stderrText, "\"legacy_printf\":true") {
+		t.Fatalf("stderr missing legacy_printf marker: %s", stderrText)
+	}
+	if !strings.Contains(stderrText, "\"component\":\"service.test\"") {
+		t.Fatalf("stderr missing component field: %s", stderrText)
+	}
+}

backend/internal/repository/account_repo.go

@@ -15,7 +15,6 @@ import (
 	"database/sql"
 	"encoding/json"
 	"errors"
-	"log"
 	"strconv"
 	"time"
 
@@ -25,6 +24,7 @@ import (
 	dbgroup "github.com/Wei-Shaw/sub2api/ent/group"
 	dbpredicate "github.com/Wei-Shaw/sub2api/ent/predicate"
 	dbproxy "github.com/Wei-Shaw/sub2api/ent/proxy"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/logger"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
 	"github.com/Wei-Shaw/sub2api/internal/service"
 	"github.com/lib/pq"
@@ -127,7 +127,7 @@ func (r *accountRepository) Create(ctx context.Context, account *service.Account
 	account.CreatedAt = created.CreatedAt
 	account.UpdatedAt = created.UpdatedAt
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &account.ID, nil, buildSchedulerGroupPayload(account.GroupIDs)); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue account create failed: account=%d err=%v", account.ID, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue account create failed: account=%d err=%v", account.ID, err)
 	}
 	return nil
 }
@@ -388,7 +388,7 @@ func (r *accountRepository) Update(ctx context.Context, account *service.Account
 	}
 	account.UpdatedAt = updated.UpdatedAt
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &account.ID, nil, buildSchedulerGroupPayload(account.GroupIDs)); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue account update failed: account=%d err=%v", account.ID, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue account update failed: account=%d err=%v", account.ID, err)
 	}
 	if account.Status == service.StatusError || account.Status == service.StatusDisabled || !account.Schedulable {
 		r.syncSchedulerAccountSnapshot(ctx, account.ID)
@@ -429,7 +429,7 @@ func (r *accountRepository) Delete(ctx context.Context, id int64) error {
 		}
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, buildSchedulerGroupPayload(groupIDs)); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue account delete failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue account delete failed: account=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -525,7 +525,7 @@ func (r *accountRepository) UpdateLastUsed(ctx context.Context, id int64) error
 		},
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountLastUsed, &id, nil, payload); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue last used failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue last used failed: account=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -560,7 +560,7 @@ func (r *accountRepository) BatchUpdateLastUsed(ctx context.Context, updates map
 	}
 	payload := map[string]any{"last_used": lastUsedPayload}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountLastUsed, nil, nil, payload); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue batch last used failed: err=%v", err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue batch last used failed: err=%v", err)
 	}
 	return nil
 }
@@ -575,7 +575,7 @@ func (r *accountRepository) SetError(ctx context.Context, id int64, errorMsg str
 		return err
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue set error failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue set error failed: account=%d err=%v", id, err)
 	}
 	r.syncSchedulerAccountSnapshot(ctx, id)
 	return nil
@@ -595,11 +595,11 @@ func (r *accountRepository) syncSchedulerAccountSnapshot(ctx context.Context, ac
 	}
 	account, err := r.GetByID(ctx, accountID)
 	if err != nil {
-		log.Printf("[Scheduler] sync account snapshot read failed: id=%d err=%v", accountID, err)
+		logger.LegacyPrintf("repository.account", "[Scheduler] sync account snapshot read failed: id=%d err=%v", accountID, err)
 		return
 	}
 	if err := r.schedulerCache.SetAccount(ctx, account); err != nil {
-		log.Printf("[Scheduler] sync account snapshot write failed: id=%d err=%v", accountID, err)
+		logger.LegacyPrintf("repository.account", "[Scheduler] sync account snapshot write failed: id=%d err=%v", accountID, err)
 	}
 }
 
@@ -623,7 +623,7 @@ func (r *accountRepository) AddToGroup(ctx context.Context, accountID, groupID i
 	}
 	payload := buildSchedulerGroupPayload([]int64{groupID})
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountGroupsChanged, &accountID, nil, payload); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue add to group failed: account=%d group=%d err=%v", accountID, groupID, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue add to group failed: account=%d group=%d err=%v", accountID, groupID, err)
 	}
 	return nil
 }
@@ -640,7 +640,7 @@ func (r *accountRepository) RemoveFromGroup(ctx context.Context, accountID, grou
 	}
 	payload := buildSchedulerGroupPayload([]int64{groupID})
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountGroupsChanged, &accountID, nil, payload); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue remove from group failed: account=%d group=%d err=%v", accountID, groupID, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue remove from group failed: account=%d group=%d err=%v", accountID, groupID, err)
 	}
 	return nil
 }
@@ -713,7 +713,7 @@ func (r *accountRepository) BindGroups(ctx context.Context, accountID int64, gro
 	}
 	payload := buildSchedulerGroupPayload(mergeGroupIDs(existingGroupIDs, groupIDs))
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountGroupsChanged, &accountID, nil, payload); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue bind groups failed: account=%d err=%v", accountID, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue bind groups failed: account=%d err=%v", accountID, err)
 	}
 	return nil
 }
@@ -821,7 +821,7 @@ func (r *accountRepository) SetRateLimited(ctx context.Context, id int64, resetA
 		return err
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue rate limit failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue rate limit failed: account=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -868,7 +868,7 @@ func (r *accountRepository) SetModelRateLimit(ctx context.Context, id int64, sco
 		return service.ErrAccountNotFound
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue model rate limit failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue model rate limit failed: account=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -882,7 +882,7 @@ func (r *accountRepository) SetOverloaded(ctx context.Context, id int64, until t
 		return err
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue overload failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue overload failed: account=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -901,7 +901,7 @@ func (r *accountRepository) SetTempUnschedulable(ctx context.Context, id int64,
 		return err
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue temp unschedulable failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue temp unschedulable failed: account=%d err=%v", id, err)
 	}
 	r.syncSchedulerAccountSnapshot(ctx, id)
 	return nil
@@ -920,7 +920,7 @@ func (r *accountRepository) ClearTempUnschedulable(ctx context.Context, id int64
 		return err
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue clear temp unschedulable failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue clear temp unschedulable failed: account=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -936,7 +936,7 @@ func (r *accountRepository) ClearRateLimit(ctx context.Context, id int64) error
 		return err
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue clear rate limit failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue clear rate limit failed: account=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -960,7 +960,7 @@ func (r *accountRepository) ClearAntigravityQuotaScopes(ctx context.Context, id
 		return service.ErrAccountNotFound
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue clear quota scopes failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue clear quota scopes failed: account=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -984,7 +984,7 @@ func (r *accountRepository) ClearModelRateLimits(ctx context.Context, id int64)
 		return service.ErrAccountNotFound
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue clear model rate limit failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue clear model rate limit failed: account=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -1006,7 +1006,7 @@ func (r *accountRepository) UpdateSessionWindow(ctx context.Context, id int64, s
 	// 触发调度器缓存更新（仅当窗口时间有变化时）
 	if start != nil || end != nil {
 		if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-			log.Printf("[SchedulerOutbox] enqueue session window update failed: account=%d err=%v", id, err)
+			logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue session window update failed: account=%d err=%v", id, err)
 		}
 	}
 	return nil
@@ -1021,7 +1021,7 @@ func (r *accountRepository) SetSchedulable(ctx context.Context, id int64, schedu
 		return err
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue schedulable change failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue schedulable change failed: account=%d err=%v", id, err)
 	}
 	if !schedulable {
 		r.syncSchedulerAccountSnapshot(ctx, id)
@@ -1049,7 +1049,7 @@ func (r *accountRepository) AutoPauseExpiredAccounts(ctx context.Context, now ti
 	}
 	if rows > 0 {
 		if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventFullRebuild, nil, nil, nil); err != nil {
-			log.Printf("[SchedulerOutbox] enqueue auto pause rebuild failed: err=%v", err)
+			logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue auto pause rebuild failed: err=%v", err)
 		}
 	}
 	return rows, nil
@@ -1085,7 +1085,7 @@ func (r *accountRepository) UpdateExtra(ctx context.Context, id int64, updates m
 		return service.ErrAccountNotFound
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountChanged, &id, nil, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue extra update failed: account=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue extra update failed: account=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -1179,7 +1179,7 @@ func (r *accountRepository) BulkUpdate(ctx context.Context, ids []int64, updates
 	if rows > 0 {
 		payload := map[string]any{"account_ids": ids}
 		if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventAccountBulkChanged, nil, nil, payload); err != nil {
-			log.Printf("[SchedulerOutbox] enqueue bulk update failed: err=%v", err)
+			logger.LegacyPrintf("repository.account", "[SchedulerOutbox] enqueue bulk update failed: err=%v", err)
 		}
 		shouldSync := false
 		if updates.Status != nil && (*updates.Status == service.StatusError || *updates.Status == service.StatusDisabled) {

backend/internal/repository/claude_oauth_service.go

@@ -4,12 +4,12 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"log"
 	"net/http"
 	"net/url"
 	"strings"
 	"time"
 
+	"github.com/Wei-Shaw/sub2api/internal/pkg/logger"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/oauth"
 	"github.com/Wei-Shaw/sub2api/internal/service"
 	"github.com/Wei-Shaw/sub2api/internal/util/logredact"
@@ -41,7 +41,7 @@ func (s *claudeOAuthService) GetOrganizationUUID(ctx context.Context, sessionKey
 	}
 
 	targetURL := s.baseURL + "/api/organizations"
-	log.Printf("[OAuth] Step 1: Getting organization UUID from %s", targetURL)
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1: Getting organization UUID from %s", targetURL)
 
 	resp, err := client.R().
 		SetContext(ctx).
@@ -53,11 +53,11 @@ func (s *claudeOAuthService) GetOrganizationUUID(ctx context.Context, sessionKey
 		Get(targetURL)
 
 	if err != nil {
-		log.Printf("[OAuth] Step 1 FAILED - Request error: %v", err)
+		logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1 FAILED - Request error: %v", err)
 		return "", fmt.Errorf("request failed: %w", err)
 	}
 
-	log.Printf("[OAuth] Step 1 Response - Status: %d", resp.StatusCode)
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1 Response - Status: %d", resp.StatusCode)
 
 	if !resp.IsSuccessState() {
 		return "", fmt.Errorf("failed to get organizations: status %d, body: %s", resp.StatusCode, resp.String())
@@ -69,21 +69,21 @@ func (s *claudeOAuthService) GetOrganizationUUID(ctx context.Context, sessionKey
 
 	// 如果只有一个组织，直接使用
 	if len(orgs) == 1 {
-		log.Printf("[OAuth] Step 1 SUCCESS - Single org found, UUID: %s, Name: %s", orgs[0].UUID, orgs[0].Name)
+		logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1 SUCCESS - Single org found, UUID: %s, Name: %s", orgs[0].UUID, orgs[0].Name)
 		return orgs[0].UUID, nil
 	}
 
 	// 如果有多个组织，优先选择 raven_type 为 "team" 的组织
 	for _, org := range orgs {
 		if org.RavenType != nil && *org.RavenType == "team" {
-			log.Printf("[OAuth] Step 1 SUCCESS - Selected team org, UUID: %s, Name: %s, RavenType: %s",
+			logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1 SUCCESS - Selected team org, UUID: %s, Name: %s, RavenType: %s",
 				org.UUID, org.Name, *org.RavenType)
 			return org.UUID, nil
 		}
 	}
 
 	// 如果没有 team 类型的组织，使用第一个
-	log.Printf("[OAuth] Step 1 SUCCESS - No team org found, using first org, UUID: %s, Name: %s", orgs[0].UUID, orgs[0].Name)
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 1 SUCCESS - No team org found, using first org, UUID: %s, Name: %s", orgs[0].UUID, orgs[0].Name)
 	return orgs[0].UUID, nil
 }
 
@@ -103,9 +103,9 @@ func (s *claudeOAuthService) GetAuthorizationCode(ctx context.Context, sessionKe
 		"code_challenge_method": "S256",
 	}
 
-	log.Printf("[OAuth] Step 2: Getting authorization code from %s", authURL)
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 2: Getting authorization code from %s", authURL)
 	reqBodyJSON, _ := json.Marshal(logredact.RedactMap(reqBody))
-	log.Printf("[OAuth] Step 2 Request Body: %s", string(reqBodyJSON))
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 2 Request Body: %s", string(reqBodyJSON))
 
 	var result struct {
 		RedirectURI string `json:"redirect_uri"`
@@ -128,11 +128,11 @@ func (s *claudeOAuthService) GetAuthorizationCode(ctx context.Context, sessionKe
 		Post(authURL)
 
 	if err != nil {
-		log.Printf("[OAuth] Step 2 FAILED - Request error: %v", err)
+		logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 2 FAILED - Request error: %v", err)
 		return "", fmt.Errorf("request failed: %w", err)
 	}
 
-	log.Printf("[OAuth] Step 2 Response - Status: %d, Body: %s", resp.StatusCode, logredact.RedactJSON(resp.Bytes()))
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 2 Response - Status: %d, Body: %s", resp.StatusCode, logredact.RedactJSON(resp.Bytes()))
 
 	if !resp.IsSuccessState() {
 		return "", fmt.Errorf("failed to get authorization code: status %d, body: %s", resp.StatusCode, resp.String())
@@ -160,7 +160,7 @@ func (s *claudeOAuthService) GetAuthorizationCode(ctx context.Context, sessionKe
 		fullCode = authCode + "#" + responseState
 	}
 
-	log.Printf("[OAuth] Step 2 SUCCESS - Got authorization code")
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 2 SUCCESS - Got authorization code")
 	return fullCode, nil
 }
 
@@ -192,9 +192,9 @@ func (s *claudeOAuthService) ExchangeCodeForToken(ctx context.Context, code, cod
 		reqBody["expires_in"] = 31536000 // 365 * 24 * 60 * 60 seconds
 	}
 
-	log.Printf("[OAuth] Step 3: Exchanging code for token at %s", s.tokenURL)
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 3: Exchanging code for token at %s", s.tokenURL)
 	reqBodyJSON, _ := json.Marshal(logredact.RedactMap(reqBody))
-	log.Printf("[OAuth] Step 3 Request Body: %s", string(reqBodyJSON))
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 3 Request Body: %s", string(reqBodyJSON))
 
 	var tokenResp oauth.TokenResponse
 
@@ -208,17 +208,17 @@ func (s *claudeOAuthService) ExchangeCodeForToken(ctx context.Context, code, cod
 		Post(s.tokenURL)
 
 	if err != nil {
-		log.Printf("[OAuth] Step 3 FAILED - Request error: %v", err)
+		logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 3 FAILED - Request error: %v", err)
 		return nil, fmt.Errorf("request failed: %w", err)
 	}
 
-	log.Printf("[OAuth] Step 3 Response - Status: %d, Body: %s", resp.StatusCode, logredact.RedactJSON(resp.Bytes()))
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 3 Response - Status: %d, Body: %s", resp.StatusCode, logredact.RedactJSON(resp.Bytes()))
 
 	if !resp.IsSuccessState() {
 		return nil, fmt.Errorf("token exchange failed: status %d, body: %s", resp.StatusCode, resp.String())
 	}
 
-	log.Printf("[OAuth] Step 3 SUCCESS - Got access token")
+	logger.LegacyPrintf("repository.claude_oauth", "[OAuth] Step 3 SUCCESS - Got access token")
 	return &tokenResp, nil
 }
 

backend/internal/repository/group_repo.go

@@ -4,11 +4,11 @@ import (
 	"context"
 	"database/sql"
 	"errors"
-	"log"
 
 	dbent "github.com/Wei-Shaw/sub2api/ent"
 	"github.com/Wei-Shaw/sub2api/ent/apikey"
 	"github.com/Wei-Shaw/sub2api/ent/group"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/logger"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/pagination"
 	"github.com/Wei-Shaw/sub2api/internal/service"
 	"github.com/lib/pq"
@@ -72,7 +72,7 @@ func (r *groupRepository) Create(ctx context.Context, groupIn *service.Group) er
 		groupIn.CreatedAt = created.CreatedAt
 		groupIn.UpdatedAt = created.UpdatedAt
 		if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &groupIn.ID, nil); err != nil {
-			log.Printf("[SchedulerOutbox] enqueue group create failed: group=%d err=%v", groupIn.ID, err)
+			logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group create failed: group=%d err=%v", groupIn.ID, err)
 		}
 	}
 	return translatePersistenceError(err, nil, service.ErrGroupExists)
@@ -152,7 +152,7 @@ func (r *groupRepository) Update(ctx context.Context, groupIn *service.Group) er
 	}
 	groupIn.UpdatedAt = updated.UpdatedAt
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &groupIn.ID, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue group update failed: group=%d err=%v", groupIn.ID, err)
+		logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group update failed: group=%d err=%v", groupIn.ID, err)
 	}
 	return nil
 }
@@ -163,7 +163,7 @@ func (r *groupRepository) Delete(ctx context.Context, id int64) error {
 		return translatePersistenceError(err, service.ErrGroupNotFound, nil)
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &id, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue group delete failed: group=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group delete failed: group=%d err=%v", id, err)
 	}
 	return nil
 }
@@ -296,7 +296,7 @@ func (r *groupRepository) DeleteAccountGroupsByGroupID(ctx context.Context, grou
 	}
 	affected, _ := res.RowsAffected()
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &groupID, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue group account clear failed: group=%d err=%v", groupID, err)
+		logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group account clear failed: group=%d err=%v", groupID, err)
 	}
 	return affected, nil
 }
@@ -406,7 +406,7 @@ func (r *groupRepository) DeleteCascade(ctx context.Context, id int64) ([]int64,
 		}
 	}
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &id, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue group cascade delete failed: group=%d err=%v", id, err)
+		logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue group cascade delete failed: group=%d err=%v", id, err)
 	}
 
 	return affectedUserIDs, nil
@@ -500,7 +500,7 @@ func (r *groupRepository) BindAccountsToGroup(ctx context.Context, groupID int64
 
 	// 发送调度器事件
 	if err := enqueueSchedulerOutbox(ctx, r.sql, service.SchedulerOutboxEventGroupChanged, nil, &groupID, nil); err != nil {
-		log.Printf("[SchedulerOutbox] enqueue bind accounts to group failed: group=%d err=%v", groupID, err)
+		logger.LegacyPrintf("repository.group", "[SchedulerOutbox] enqueue bind accounts to group failed: group=%d err=%v", groupID, err)
 	}
 
 	return nil

backend/internal/repository/ops_repo.go

@@ -3,6 +3,7 @@ package repository
 import (
 	"context"
 	"database/sql"
+	"encoding/json"
 	"fmt"
 	"strings"
 	"time"
@@ -938,6 +939,243 @@ WHERE id = $1`
 	return err
 }
 
+func (r *opsRepository) BatchInsertSystemLogs(ctx context.Context, inputs []*service.OpsInsertSystemLogInput) (int64, error) {
+	if r == nil || r.db == nil {
+		return 0, fmt.Errorf("nil ops repository")
+	}
+	if len(inputs) == 0 {
+		return 0, nil
+	}
+
+	tx, err := r.db.BeginTx(ctx, nil)
+	if err != nil {
+		return 0, err
+	}
+	stmt, err := tx.PrepareContext(ctx, pq.CopyIn(
+		"ops_system_logs",
+		"created_at",
+		"level",
+		"component",
+		"message",
+		"request_id",
+		"client_request_id",
+		"user_id",
+		"account_id",
+		"platform",
+		"model",
+		"extra",
+	))
+	if err != nil {
+		_ = tx.Rollback()
+		return 0, err
+	}
+
+	var inserted int64
+	for _, input := range inputs {
+		if input == nil {
+			continue
+		}
+		createdAt := input.CreatedAt
+		if createdAt.IsZero() {
+			createdAt = time.Now().UTC()
+		}
+		component := strings.TrimSpace(input.Component)
+		level := strings.ToLower(strings.TrimSpace(input.Level))
+		message := strings.TrimSpace(input.Message)
+		if level == "" || message == "" {
+			continue
+		}
+		if component == "" {
+			component = "app"
+		}
+		extra := strings.TrimSpace(input.ExtraJSON)
+		if extra == "" {
+			extra = "{}"
+		}
+		if _, err := stmt.ExecContext(
+			ctx,
+			createdAt.UTC(),
+			level,
+			component,
+			message,
+			opsNullString(input.RequestID),
+			opsNullString(input.ClientRequestID),
+			opsNullInt64(input.UserID),
+			opsNullInt64(input.AccountID),
+			opsNullString(input.Platform),
+			opsNullString(input.Model),
+			extra,
+		); err != nil {
+			_ = stmt.Close()
+			_ = tx.Rollback()
+			return inserted, err
+		}
+		inserted++
+	}
+
+	if _, err := stmt.ExecContext(ctx); err != nil {
+		_ = stmt.Close()
+		_ = tx.Rollback()
+		return inserted, err
+	}
+	if err := stmt.Close(); err != nil {
+		_ = tx.Rollback()
+		return inserted, err
+	}
+	if err := tx.Commit(); err != nil {
+		return inserted, err
+	}
+	return inserted, nil
+}
+
+func (r *opsRepository) ListSystemLogs(ctx context.Context, filter *service.OpsSystemLogFilter) (*service.OpsSystemLogList, error) {
+	if r == nil || r.db == nil {
+		return nil, fmt.Errorf("nil ops repository")
+	}
+	if filter == nil {
+		filter = &service.OpsSystemLogFilter{}
+	}
+
+	page := filter.Page
+	if page <= 0 {
+		page = 1
+	}
+	pageSize := filter.PageSize
+	if pageSize <= 0 {
+		pageSize = 50
+	}
+	if pageSize > 200 {
+		pageSize = 200
+	}
+
+	where, args, _ := buildOpsSystemLogsWhere(filter)
+	countSQL := "SELECT COUNT(*) FROM ops_system_logs l " + where
+	var total int
+	if err := r.db.QueryRowContext(ctx, countSQL, args...).Scan(&total); err != nil {
+		return nil, err
+	}
+
+	offset := (page - 1) * pageSize
+	argsWithLimit := append(args, pageSize, offset)
+	query := `
+SELECT
+  l.id,
+  l.created_at,
+  l.level,
+  COALESCE(l.component, ''),
+  COALESCE(l.message, ''),
+  COALESCE(l.request_id, ''),
+  COALESCE(l.client_request_id, ''),
+  l.user_id,
+  l.account_id,
+  COALESCE(l.platform, ''),
+  COALESCE(l.model, ''),
+  COALESCE(l.extra::text, '{}')
+FROM ops_system_logs l
+` + where + `
+ORDER BY l.created_at DESC, l.id DESC
+LIMIT $` + itoa(len(args)+1) + ` OFFSET $` + itoa(len(args)+2)
+
+	rows, err := r.db.QueryContext(ctx, query, argsWithLimit...)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	logs := make([]*service.OpsSystemLog, 0, pageSize)
+	for rows.Next() {
+		item := &service.OpsSystemLog{}
+		var userID sql.NullInt64
+		var accountID sql.NullInt64
+		var extraRaw string
+		if err := rows.Scan(
+			&item.ID,
+			&item.CreatedAt,
+			&item.Level,
+			&item.Component,
+			&item.Message,
+			&item.RequestID,
+			&item.ClientRequestID,
+			&userID,
+			&accountID,
+			&item.Platform,
+			&item.Model,
+			&extraRaw,
+		); err != nil {
+			return nil, err
+		}
+		if userID.Valid {
+			v := userID.Int64
+			item.UserID = &v
+		}
+		if accountID.Valid {
+			v := accountID.Int64
+			item.AccountID = &v
+		}
+		extraRaw = strings.TrimSpace(extraRaw)
+		if extraRaw != "" && extraRaw != "null" && extraRaw != "{}" {
+			extra := make(map[string]any)
+			if err := json.Unmarshal([]byte(extraRaw), &extra); err == nil {
+				item.Extra = extra
+			}
+		}
+		logs = append(logs, item)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return &service.OpsSystemLogList{
+		Logs:     logs,
+		Total:    total,
+		Page:     page,
+		PageSize: pageSize,
+	}, nil
+}
+
+func (r *opsRepository) DeleteSystemLogs(ctx context.Context, filter *service.OpsSystemLogCleanupFilter) (int64, error) {
+	if r == nil || r.db == nil {
+		return 0, fmt.Errorf("nil ops repository")
+	}
+	if filter == nil {
+		filter = &service.OpsSystemLogCleanupFilter{}
+	}
+
+	where, args, hasConstraint := buildOpsSystemLogsCleanupWhere(filter)
+	if !hasConstraint {
+		return 0, fmt.Errorf("cleanup requires at least one filter condition")
+	}
+
+	query := "DELETE FROM ops_system_logs l " + where
+	res, err := r.db.ExecContext(ctx, query, args...)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func (r *opsRepository) InsertSystemLogCleanupAudit(ctx context.Context, input *service.OpsSystemLogCleanupAudit) error {
+	if r == nil || r.db == nil {
+		return fmt.Errorf("nil ops repository")
+	}
+	if input == nil {
+		return fmt.Errorf("nil input")
+	}
+	createdAt := input.CreatedAt
+	if createdAt.IsZero() {
+		createdAt = time.Now().UTC()
+	}
+	_, err := r.db.ExecContext(ctx, `
+INSERT INTO ops_system_log_cleanup_audits (
+  created_at,
+  operator_id,
+  conditions,
+  deleted_rows
+) VALUES ($1,$2,$3,$4)
+`, createdAt.UTC(), input.OperatorID, input.Conditions, input.DeletedRows)
+	return err
+}
+
 func buildOpsErrorLogsWhere(filter *service.OpsErrorLogFilter) (string, []any) {
 	clauses := make([]string, 0, 12)
 	args := make([]any, 0, 12)
@@ -1053,6 +1291,95 @@ func buildOpsErrorLogsWhere(filter *service.OpsErrorLogFilter) (string, []any) {
 	return "WHERE " + strings.Join(clauses, " AND "), args
 }
 
+func buildOpsSystemLogsWhere(filter *service.OpsSystemLogFilter) (string, []any, bool) {
+	clauses := make([]string, 0, 10)
+	args := make([]any, 0, 10)
+	clauses = append(clauses, "1=1")
+	hasConstraint := false
+
+	if filter != nil && filter.StartTime != nil && !filter.StartTime.IsZero() {
+		args = append(args, filter.StartTime.UTC())
+		clauses = append(clauses, "l.created_at >= $"+itoa(len(args)))
+		hasConstraint = true
+	}
+	if filter != nil && filter.EndTime != nil && !filter.EndTime.IsZero() {
+		args = append(args, filter.EndTime.UTC())
+		clauses = append(clauses, "l.created_at < $"+itoa(len(args)))
+		hasConstraint = true
+	}
+	if filter != nil {
+		if v := strings.ToLower(strings.TrimSpace(filter.Level)); v != "" {
+			args = append(args, v)
+			clauses = append(clauses, "LOWER(COALESCE(l.level,'')) = $"+itoa(len(args)))
+			hasConstraint = true
+		}
+		if v := strings.TrimSpace(filter.Component); v != "" {
+			args = append(args, v)
+			clauses = append(clauses, "COALESCE(l.component,'') = $"+itoa(len(args)))
+			hasConstraint = true
+		}
+		if v := strings.TrimSpace(filter.RequestID); v != "" {
+			args = append(args, v)
+			clauses = append(clauses, "COALESCE(l.request_id,'') = $"+itoa(len(args)))
+			hasConstraint = true
+		}
+		if v := strings.TrimSpace(filter.ClientRequestID); v != "" {
+			args = append(args, v)
+			clauses = append(clauses, "COALESCE(l.client_request_id,'') = $"+itoa(len(args)))
+			hasConstraint = true
+		}
+		if filter.UserID != nil && *filter.UserID > 0 {
+			args = append(args, *filter.UserID)
+			clauses = append(clauses, "l.user_id = $"+itoa(len(args)))
+			hasConstraint = true
+		}
+		if filter.AccountID != nil && *filter.AccountID > 0 {
+			args = append(args, *filter.AccountID)
+			clauses = append(clauses, "l.account_id = $"+itoa(len(args)))
+			hasConstraint = true
+		}
+		if v := strings.TrimSpace(filter.Platform); v != "" {
+			args = append(args, v)
+			clauses = append(clauses, "COALESCE(l.platform,'') = $"+itoa(len(args)))
+			hasConstraint = true
+		}
+		if v := strings.TrimSpace(filter.Model); v != "" {
+			args = append(args, v)
+			clauses = append(clauses, "COALESCE(l.model,'') = $"+itoa(len(args)))
+			hasConstraint = true
+		}
+		if v := strings.TrimSpace(filter.Query); v != "" {
+			like := "%" + v + "%"
+			args = append(args, like)
+			n := itoa(len(args))
+			clauses = append(clauses, "(l.message ILIKE $"+n+" OR COALESCE(l.request_id,'') ILIKE $"+n+" OR COALESCE(l.client_request_id,'') ILIKE $"+n+" OR COALESCE(l.extra::text,'') ILIKE $"+n+")")
+			hasConstraint = true
+		}
+	}
+
+	return "WHERE " + strings.Join(clauses, " AND "), args, hasConstraint
+}
+
+func buildOpsSystemLogsCleanupWhere(filter *service.OpsSystemLogCleanupFilter) (string, []any, bool) {
+	if filter == nil {
+		filter = &service.OpsSystemLogCleanupFilter{}
+	}
+	listFilter := &service.OpsSystemLogFilter{
+		StartTime:       filter.StartTime,
+		EndTime:         filter.EndTime,
+		Level:           filter.Level,
+		Component:       filter.Component,
+		RequestID:       filter.RequestID,
+		ClientRequestID: filter.ClientRequestID,
+		UserID:          filter.UserID,
+		AccountID:       filter.AccountID,
+		Platform:        filter.Platform,
+		Model:           filter.Model,
+		Query:           filter.Query,
+	}
+	return buildOpsSystemLogsWhere(listFilter)
+}
+
 // Helpers for nullable args
 func opsNullString(v any) any {
 	switch s := v.(type) {

backend/internal/repository/ops_repo_system_logs_test.go

+package repository
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+func TestBuildOpsSystemLogsWhere_WithClientRequestIDAndUserID(t *testing.T) {
+	start := time.Date(2026, 2, 1, 0, 0, 0, 0, time.UTC)
+	end := time.Date(2026, 2, 2, 0, 0, 0, 0, time.UTC)
+	userID := int64(12)
+	accountID := int64(34)
+
+	filter := &service.OpsSystemLogFilter{
+		StartTime:       &start,
+		EndTime:         &end,
+		Level:           "warn",
+		Component:       "http.access",
+		RequestID:       "req-1",
+		ClientRequestID: "creq-1",
+		UserID:          &userID,
+		AccountID:       &accountID,
+		Platform:        "openai",
+		Model:           "gpt-5",
+		Query:           "timeout",
+	}
+
+	where, args, hasConstraint := buildOpsSystemLogsWhere(filter)
+	if !hasConstraint {
+		t.Fatalf("expected hasConstraint=true")
+	}
+	if where == "" {
+		t.Fatalf("where should not be empty")
+	}
+	if len(args) != 11 {
+		t.Fatalf("args len = %d, want 11", len(args))
+	}
+	if !contains(where, "COALESCE(l.client_request_id,'') = $") {
+		t.Fatalf("where should include client_request_id condition: %s", where)
+	}
+	if !contains(where, "l.user_id = $") {
+		t.Fatalf("where should include user_id condition: %s", where)
+	}
+}
+
+func TestBuildOpsSystemLogsCleanupWhere_RequireConstraint(t *testing.T) {
+	where, args, hasConstraint := buildOpsSystemLogsCleanupWhere(&service.OpsSystemLogCleanupFilter{})
+	if hasConstraint {
+		t.Fatalf("expected hasConstraint=false")
+	}
+	if where == "" {
+		t.Fatalf("where should not be empty")
+	}
+	if len(args) != 0 {
+		t.Fatalf("args len = %d, want 0", len(args))
+	}
+}
+
+func TestBuildOpsSystemLogsCleanupWhere_WithClientRequestIDAndUserID(t *testing.T) {
+	userID := int64(9)
+	filter := &service.OpsSystemLogCleanupFilter{
+		ClientRequestID: "creq-9",
+		UserID:          &userID,
+	}
+
+	where, args, hasConstraint := buildOpsSystemLogsCleanupWhere(filter)
+	if !hasConstraint {
+		t.Fatalf("expected hasConstraint=true")
+	}
+	if len(args) != 2 {
+		t.Fatalf("args len = %d, want 2", len(args))
+	}
+	if !contains(where, "COALESCE(l.client_request_id,'') = $") {
+		t.Fatalf("where should include client_request_id condition: %s", where)
+	}
+	if !contains(where, "l.user_id = $") {
+		t.Fatalf("where should include user_id condition: %s", where)
+	}
+}
+
+func contains(s string, sub string) bool {
+	return strings.Contains(s, sub)
+}

backend/internal/server/middleware/client_request_id.go

@@ -2,10 +2,13 @@ package middleware
 
 import (
 	"context"
+	"strings"
 
 	"github.com/Wei-Shaw/sub2api/internal/pkg/ctxkey"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/logger"
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
+	"go.uber.org/zap"
 )
 
 // ClientRequestID ensures every request has a unique client_request_id in request.Context().
@@ -24,7 +27,10 @@ func ClientRequestID() gin.HandlerFunc {
 		}
 
 		id := uuid.New().String()
-		c.Request = c.Request.WithContext(context.WithValue(c.Request.Context(), ctxkey.ClientRequestID, id))
+		ctx := context.WithValue(c.Request.Context(), ctxkey.ClientRequestID, id)
+		requestLogger := logger.FromContext(ctx).With(zap.String("client_request_id", strings.TrimSpace(id)))
+		ctx = logger.IntoContext(ctx, requestLogger)
+		c.Request = c.Request.WithContext(ctx)
 		c.Next()
 	}
 }

backend/internal/server/middleware/logger.go

 package middleware
 
 import (
-	"log"
 	"time"
 
+	"github.com/Wei-Shaw/sub2api/internal/pkg/ctxkey"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/logger"
 	"github.com/gin-gonic/gin"
+	"go.uber.org/zap"
 )
 
 // Logger 请求日志中间件
@@ -24,38 +26,71 @@ func Logger() gin.HandlerFunc {
 			return
 		}
 
-		// 结束时间
 		endTime := time.Now()
-
-		// 执行时间
 		latency := endTime.Sub(startTime)
 
-		// 请求方法
 		method := c.Request.Method
-
-		// 状态码
 		statusCode := c.Writer.Status()
-
-		// 客户端IP
 		clientIP := c.ClientIP()
-
-		// 协议版本
 		protocol := c.Request.Proto
+		accountID, hasAccountID := c.Request.Context().Value(ctxkey.AccountID).(int64)
+		platform, _ := c.Request.Context().Value(ctxkey.Platform).(string)
+		model, _ := c.Request.Context().Value(ctxkey.Model).(string)
+
+		fields := []zap.Field{
+			zap.String("component", "http.access"),
+			zap.Int("status_code", statusCode),
+			zap.Int64("latency_ms", latency.Milliseconds()),
+			zap.String("client_ip", clientIP),
+			zap.String("protocol", protocol),
+			zap.String("method", method),
+			zap.String("path", path),
+		}
+		if hasAccountID && accountID > 0 {
+			fields = append(fields, zap.Int64("account_id", accountID))
+		}
+		if platform != "" {
+			fields = append(fields, zap.String("platform", platform))
+		}
+		if model != "" {
+			fields = append(fields, zap.String("model", model))
+		}
+
+		l := logger.FromContext(c.Request.Context()).With(fields...)
+		l.Info("http request completed", zap.Time("completed_at", endTime))
+		// 当全局日志级别高于 info（如 warn/error）时，access info 不会进入 zap core，
+		// 这里补写一次 sink，保证 ops 系统日志仍可索引关键访问轨迹。
+		if !logger.L().Core().Enabled(logger.LevelInfo) {
+			sinkFields := map[string]any{
+				"component":    "http.access",
+				"status_code":  statusCode,
+				"latency_ms":   latency.Milliseconds(),
+				"client_ip":    clientIP,
+				"protocol":     protocol,
+				"method":       method,
+				"path":         path,
+				"completed_at": endTime,
+			}
+			if requestID, ok := c.Request.Context().Value(ctxkey.RequestID).(string); ok && requestID != "" {
+				sinkFields["request_id"] = requestID
+			}
+			if clientRequestID, ok := c.Request.Context().Value(ctxkey.ClientRequestID).(string); ok && clientRequestID != "" {
+				sinkFields["client_request_id"] = clientRequestID
+			}
+			if hasAccountID && accountID > 0 {
+				sinkFields["account_id"] = accountID
+			}
+			if platform != "" {
+				sinkFields["platform"] = platform
+			}
+			if model != "" {
+				sinkFields["model"] = model
+			}
+			logger.WriteSinkEvent("info", "http.access", "http request completed", sinkFields)
+		}
 
-		// 日志格式: [时间] 状态码 | 延迟 | IP | 协议 | 方法 路径
-		log.Printf("[GIN] %v | %3d | %13v | %15s | %-6s | %-7s %s",
-			endTime.Format("2006/01/02 - 15:04:05"),
-			statusCode,
-			latency,
-			clientIP,
-			protocol,
-			method,
-			path,
-		)
-
-		// 如果有错误，额外记录错误信息
 		if len(c.Errors) > 0 {
-			log.Printf("[GIN] Errors: %v", c.Errors.String())
+			l.Warn("http request contains gin errors", zap.String("errors", c.Errors.String()))
 		}
 	}
 }

backend/internal/server/middleware/request_access_logger_test.go

+package middleware
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"sync"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/ctxkey"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/logger"
+	"github.com/gin-gonic/gin"
+)
+
+type testLogSink struct {
+	mu     sync.Mutex
+	events []*logger.LogEvent
+}
+
+func (s *testLogSink) WriteLogEvent(event *logger.LogEvent) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.events = append(s.events, event)
+}
+
+func (s *testLogSink) list() []*logger.LogEvent {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	out := make([]*logger.LogEvent, len(s.events))
+	copy(out, s.events)
+	return out
+}
+
+func initMiddlewareTestLogger(t *testing.T) *testLogSink {
+	return initMiddlewareTestLoggerWithLevel(t, "debug")
+}
+
+func initMiddlewareTestLoggerWithLevel(t *testing.T, level string) *testLogSink {
+	t.Helper()
+	level = strings.TrimSpace(level)
+	if level == "" {
+		level = "debug"
+	}
+	if err := logger.Init(logger.InitOptions{
+		Level:       level,
+		Format:      "json",
+		ServiceName: "sub2api",
+		Environment: "test",
+		Output: logger.OutputOptions{
+			ToStdout: false,
+			ToFile:   false,
+		},
+	}); err != nil {
+		t.Fatalf("init logger: %v", err)
+	}
+	sink := &testLogSink{}
+	logger.SetSink(sink)
+	t.Cleanup(func() {
+		logger.SetSink(nil)
+	})
+	return sink
+}
+
+func TestRequestLogger_GenerateAndPropagateRequestID(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	r := gin.New()
+	r.Use(RequestLogger())
+	r.GET("/t", func(c *gin.Context) {
+		reqID, ok := c.Request.Context().Value(ctxkey.RequestID).(string)
+		if !ok || reqID == "" {
+			t.Fatalf("request_id missing in context")
+		}
+		if got := c.Writer.Header().Get(requestIDHeader); got != reqID {
+			t.Fatalf("response header request_id mismatch, header=%q ctx=%q", got, reqID)
+		}
+		c.Status(http.StatusOK)
+	})
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/t", nil)
+	r.ServeHTTP(w, req)
+	if w.Code != http.StatusOK {
+		t.Fatalf("status=%d", w.Code)
+	}
+	if w.Header().Get(requestIDHeader) == "" {
+		t.Fatalf("X-Request-ID should be set")
+	}
+}
+
+func TestRequestLogger_KeepIncomingRequestID(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	r := gin.New()
+	r.Use(RequestLogger())
+	r.GET("/t", func(c *gin.Context) {
+		reqID, _ := c.Request.Context().Value(ctxkey.RequestID).(string)
+		if reqID != "rid-fixed" {
+			t.Fatalf("request_id=%q, want rid-fixed", reqID)
+		}
+		c.Status(http.StatusOK)
+	})
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/t", nil)
+	req.Header.Set(requestIDHeader, "rid-fixed")
+	r.ServeHTTP(w, req)
+	if w.Code != http.StatusOK {
+		t.Fatalf("status=%d", w.Code)
+	}
+	if got := w.Header().Get(requestIDHeader); got != "rid-fixed" {
+		t.Fatalf("header=%q, want rid-fixed", got)
+	}
+}
+
+func TestLogger_AccessLogIncludesCoreFields(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	sink := initMiddlewareTestLogger(t)
+
+	r := gin.New()
+	r.Use(Logger())
+	r.Use(func(c *gin.Context) {
+		ctx := c.Request.Context()
+		ctx = context.WithValue(ctx, ctxkey.AccountID, int64(101))
+		ctx = context.WithValue(ctx, ctxkey.Platform, "openai")
+		ctx = context.WithValue(ctx, ctxkey.Model, "gpt-5")
+		c.Request = c.Request.WithContext(ctx)
+		c.Next()
+	})
+	r.GET("/api/test", func(c *gin.Context) {
+		c.Status(http.StatusCreated)
+	})
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/api/test", nil)
+	r.ServeHTTP(w, req)
+	if w.Code != http.StatusCreated {
+		t.Fatalf("status=%d", w.Code)
+	}
+
+	events := sink.list()
+	if len(events) == 0 {
+		t.Fatalf("expected at least one log event")
+	}
+	found := false
+	for _, event := range events {
+		if event == nil || event.Message != "http request completed" {
+			continue
+		}
+		found = true
+		switch v := event.Fields["status_code"].(type) {
+		case int:
+			if v != http.StatusCreated {
+				t.Fatalf("status_code field mismatch: %v", v)
+			}
+		case int64:
+			if v != int64(http.StatusCreated) {
+				t.Fatalf("status_code field mismatch: %v", v)
+			}
+		default:
+			t.Fatalf("status_code type mismatch: %T", v)
+		}
+		switch v := event.Fields["account_id"].(type) {
+		case int64:
+			if v != 101 {
+				t.Fatalf("account_id field mismatch: %v", v)
+			}
+		case int:
+			if v != 101 {
+				t.Fatalf("account_id field mismatch: %v", v)
+			}
+		default:
+			t.Fatalf("account_id type mismatch: %T", v)
+		}
+		if event.Fields["platform"] != "openai" || event.Fields["model"] != "gpt-5" {
+			t.Fatalf("platform/model mismatch: %+v", event.Fields)
+		}
+	}
+	if !found {
+		t.Fatalf("access log event not found")
+	}
+}
+
+func TestLogger_HealthPathSkipped(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	sink := initMiddlewareTestLogger(t)
+
+	r := gin.New()
+	r.Use(Logger())
+	r.GET("/health", func(c *gin.Context) {
+		c.Status(http.StatusOK)
+	})
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/health", nil)
+	r.ServeHTTP(w, req)
+	if w.Code != http.StatusOK {
+		t.Fatalf("status=%d", w.Code)
+	}
+	if len(sink.list()) != 0 {
+		t.Fatalf("health endpoint should not write access log")
+	}
+}
+
+func TestLogger_AccessLogStillIndexedWhenLevelWarn(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	sink := initMiddlewareTestLoggerWithLevel(t, "warn")
+
+	r := gin.New()
+	r.Use(RequestLogger())
+	r.Use(Logger())
+	r.GET("/api/test", func(c *gin.Context) {
+		c.Status(http.StatusCreated)
+	})
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/api/test", nil)
+	r.ServeHTTP(w, req)
+	if w.Code != http.StatusCreated {
+		t.Fatalf("status=%d", w.Code)
+	}
+
+	events := sink.list()
+	if len(events) == 0 {
+		t.Fatalf("expected access log event to be indexed when level=warn")
+	}
+
+	found := false
+	for _, event := range events {
+		if event == nil || event.Message != "http request completed" {
+			continue
+		}
+		found = true
+		if event.Level != "info" {
+			t.Fatalf("event level=%q, want info", event.Level)
+		}
+		if event.Component != "http.access" && event.Fields["component"] != "http.access" {
+			t.Fatalf("event component mismatch: component=%q fields=%v", event.Component, event.Fields["component"])
+		}
+		if _, ok := event.Fields["status_code"]; !ok {
+			t.Fatalf("status_code field missing: %+v", event.Fields)
+		}
+		if _, ok := event.Fields["request_id"]; !ok {
+			t.Fatalf("request_id field missing: %+v", event.Fields)
+		}
+	}
+	if !found {
+		t.Fatalf("access log event not found")
+	}
+}

backend/internal/server/middleware/request_logger.go

+package middleware
+
+import (
+	"context"
+	"strings"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/ctxkey"
+	"github.com/Wei-Shaw/sub2api/internal/pkg/logger"
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+const requestIDHeader = "X-Request-ID"
+
+// RequestLogger 在请求入口注入 request-scoped logger。
+func RequestLogger() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if c.Request == nil {
+			c.Next()
+			return
+		}
+
+		requestID := strings.TrimSpace(c.GetHeader(requestIDHeader))
+		if requestID == "" {
+			requestID = uuid.NewString()
+		}
+		c.Header(requestIDHeader, requestID)
+
+		ctx := context.WithValue(c.Request.Context(), ctxkey.RequestID, requestID)
+		clientRequestID, _ := ctx.Value(ctxkey.ClientRequestID).(string)
+
+		requestLogger := logger.With(
+			zap.String("component", "http"),
+			zap.String("request_id", requestID),
+			zap.String("client_request_id", strings.TrimSpace(clientRequestID)),
+			zap.String("path", c.Request.URL.Path),
+			zap.String("method", c.Request.Method),
+		)
+
+		ctx = logger.IntoContext(ctx, requestLogger)
+		c.Request = c.Request.WithContext(ctx)
+		c.Next()
+	}
+}

backend/internal/server/router.go

@@ -29,6 +29,7 @@ func SetupRouter(
 	redisClient *redis.Client,
 ) *gin.Engine {
 	// 应用中间件
+	r.Use(middleware2.RequestLogger())
 	r.Use(middleware2.Logger())
 	r.Use(middleware2.CORS(cfg.CORS))
 	r.Use(middleware2.SecurityHeaders(cfg.Security.CSP))

backend/internal/server/routes/admin.go

@@ -101,6 +101,9 @@ func registerOpsRoutes(admin *gin.RouterGroup, h *handler.Handlers) {
 		{
 			runtime.GET("/alert", h.Admin.Ops.GetAlertRuntimeSettings)
 			runtime.PUT("/alert", h.Admin.Ops.UpdateAlertRuntimeSettings)
+			runtime.GET("/logging", h.Admin.Ops.GetRuntimeLogConfig)
+			runtime.PUT("/logging", h.Admin.Ops.UpdateRuntimeLogConfig)
+			runtime.POST("/logging/reset", h.Admin.Ops.ResetRuntimeLogConfig)
 		}
 
 		// Advanced settings (DB-backed)
@@ -144,6 +147,11 @@ func registerOpsRoutes(admin *gin.RouterGroup, h *handler.Handlers) {
 		// Request drilldown (success + error)
 		ops.GET("/requests", h.Admin.Ops.ListRequestDetails)
 
+		// Indexed system logs
+		ops.GET("/system-logs", h.Admin.Ops.ListSystemLogs)
+		ops.POST("/system-logs/cleanup", h.Admin.Ops.CleanupSystemLogs)
+		ops.GET("/system-logs/health", h.Admin.Ops.GetSystemLogIngestionHealth)
+
 		// Dashboard (vNext - raw path for MVP)
 		ops.GET("/dashboard/overview", h.Admin.Ops.GetDashboardOverview)
 		ops.GET("/dashboard/throughput-trend", h.Admin.Ops.GetDashboardThroughputTrend)