OIDC 인증 로직 수정 및 백엔드 라우팅 오류 해결

backend/cmd/server/main.go

@@ -242,6 +242,7 @@ func main() {
 	app := fiber.New(fiber.Config{
 		AppName:               "Baron SSO Backend",
 		DisableStartupMessage: true, // Clean logs
+		ReadBufferSize:        32768, // 32KB로 증가 (긴 OIDC 챌린지 대응)
 		// Global Error Handler for Production Masking
 		ErrorHandler: func(c *fiber.Ctx, err error) error {
 			// Default status code
@@ -459,6 +460,9 @@ func main() {
 	auth.Post("/login/code/verify", authHandler.VerifyLoginCode)
 	auth.Post("/login/code/verify-short", authHandler.VerifyLoginShortCode)
 	auth.Post("/password/login", authHandler.PasswordLogin)
+	auth.Get("/consent", authHandler.GetConsentRequest)
+	auth.Post("/consent/accept", authHandler.AcceptConsentRequest)
+
 	auth.Post("/password/reset/initiate", authHandler.InitiatePasswordReset)
 	// [Changed] Use Interstitial Page for GET to prevent Scanner consumption
 	auth.Get("/password/reset/verify", authHandler.VerifyPasswordResetPage)