refactor(accesslog): restructure access logging; enhance console output format

Major refactoring of the access logging infrastructure to improve code organization and add proper console/stdout logging support.

- Renamed `Writer` interface to `File` and consolidated with `SupportRotate`
- Renamed `Log(req, res)` to `LogRequest(req, res)` for clarity
- Added new `ConsoleLogger` with zerolog console writer for formatted stdout output
- Moved type definitions to new `types.go` file
- Changed buffer handling from `[]byte` returns to `*bytes.Buffer` parameters
- Renamed internal files for clarity (`access_logger.go` → `file_access_logger.go`)
- Fixed fileserver access logging timing: moved logging after handler execution with defer
- Correct response handling in Fileserver
- Remove deprecated field `buffer_size`
- Simplify and removed unnecessary code

All callers have been updated to use the new APIs.

internal/logging/accesslog/console_logger.go

@@ -0,0 +1,73 @@
+package accesslog
+
+import (
+	"net/http"
+	"os"
+
+	"github.com/rs/zerolog"
+	maxmind "github.com/yusing/godoxy/internal/maxmind/types"
+)
+
+type ConsoleLogger struct {
+	cfg *Config
+
+	formatter ConsoleFormatter
+}
+
+var stdoutLogger = func() *zerolog.Logger {
+	l := zerolog.New(zerolog.NewConsoleWriter(func(w *zerolog.ConsoleWriter) {
+		w.Out = os.Stdout
+		w.TimeFormat = zerolog.TimeFieldFormat
+		w.FieldsOrder = []string{
+			"uri", "protocol", "type", "size",
+			"useragent", "query", "headers", "cookies",
+			"error", "iso_code", "time_zone"}
+	})).With().Str("level", zerolog.InfoLevel.String()).Timestamp().Logger()
+	return &l
+}()
+
+// placeholder for console logger
+var stdout File = &sharedFileHandle{}
+
+func NewConsoleLogger(cfg *Config) AccessLogger {
+	if cfg == nil {
+		panic("accesslog: NewConsoleLogger called with nil config")
+	}
+	l := &ConsoleLogger{
+		cfg: cfg,
+	}
+	if cfg.req != nil {
+		l.formatter = ConsoleFormatter{cfg: &cfg.req.Fields}
+	}
+	return l
+}
+
+func (l *ConsoleLogger) Config() *Config {
+	return l.cfg
+}
+
+func (l *ConsoleLogger) LogRequest(req *http.Request, res *http.Response) {
+	if !l.cfg.ShouldLogRequest(req, res) {
+		return
+	}
+
+	l.formatter.LogRequestZeroLog(stdoutLogger, req, res)
+}
+
+func (l *ConsoleLogger) LogError(req *http.Request, err error) {
+	log := stdoutLogger.With().Err(err).Logger()
+	l.formatter.LogRequestZeroLog(&log, req, internalErrorResponse)
+}
+
+func (l *ConsoleLogger) LogACL(info *maxmind.IPInfo, blocked bool) {
+	ConsoleACLFormatter{}.LogACLZeroLog(stdoutLogger, info, blocked)
+}
+
+func (l *ConsoleLogger) Flush() {
+	// No-op for console logger
+}
+
+func (l *ConsoleLogger) Close() error {
+	// No-op for console logger
+	return nil
+}