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/mock_file.go

@@ -13,7 +13,7 @@ type MockFile struct {
 	buffered bool
 }
 
-var _ SupportRotate = (*MockFile)(nil)
+var _ File = (*MockFile)(nil)
 
 func NewMockFile(buffered bool) *MockFile {
 	f, _ := afero.TempFile(afero.NewMemMapFs(), "", "")
@@ -52,14 +52,9 @@ func (m *MockFile) NumLines() int {
 	return count
 }
 
-func (m *MockFile) Size() (int64, error) {
-	stat, _ := m.Stat()
-	return stat.Size(), nil
-}
-
 func (m *MockFile) MustSize() int64 {
-	size, _ := m.Size()
-	return size
+	stat, _ := m.Stat()
+	return stat.Size()
 }
 
 func (m *MockFile) Close() error {