Feat/fileserver (#60)

* cleanup code for URL type

* fix makefile for trace mode

* refactor, merge Entry, RawEntry and Route into one. 

* Implement fileserver.

* refactor: rename HTTPRoute to ReverseProxyRoute to avoid confusion

* refactor: move metrics logger to middleware package

- fix prometheus metrics for load balanced routes
  - route will now fail when health monitor fail to start

* fix extra output of ls-* commands by defer initializaing stuff, speed up start time

* add test for path traversal attack, small fix on FileServer.Start method

* rename rule.on.bypass to pass

* refactor and fixed map-to-map  deserialization

* updated route loading logic

* schemas: add "add_prefix" option to modify_request middleware


* updated route JSONMarshalling

---------

Co-authored-by: yusing <yusing@6uo.me>

internal/api/v1/auth/oidc_test.go

@@ -14,7 +14,6 @@ import (
 	"github.com/coreos/go-oidc/v3/oidc"
 	"github.com/golang-jwt/jwt/v5"
 	"github.com/yusing/go-proxy/internal/common"
-	E "github.com/yusing/go-proxy/internal/error"
 	"golang.org/x/oauth2"
 
 	. "github.com/yusing/go-proxy/internal/utils/testing"
@@ -227,7 +226,7 @@ func TestOIDCCallbackHandler(t *testing.T) {
 			}
 
 			if tt.wantStatus == http.StatusTemporaryRedirect {
-				setCookie := E.Must(http.ParseSetCookie(w.Header().Get("Set-Cookie")))
+				setCookie := Must(http.ParseSetCookie(w.Header().Get("Set-Cookie")))
 				ExpectEqual(t, setCookie.Name, defaultAuth.TokenCookieName())
 				ExpectTrue(t, setCookie.Value != "")
 				ExpectEqual(t, setCookie.Path, "/")