diff --git a/backend/errcode/locale.en.toml b/backend/errcode/locale.en.toml
new file mode 100644
index 0000000..a4399b2
--- /dev/null
+++ b/backend/errcode/locale.en.toml
@@ -0,0 +1,35 @@
+[err-permission]
+other = "Permission denied"
+
+[err-user-not-found]
+other = "User not found"
+
+[err-user-lock]
+other = "User is locked"
+
+[err-password]
+other = "Incorrect password"
+
+[err-invite-code-invalid]
+other = "Invalid invitation code"
+
+[err-email-invalid]
+other = "Invalid email format"
+
+[err-oauth-state-invalid]
+other = "Invalid OAuth state"
+
+[err-unsupported-platform]
+other = "Unsupported platform"
+
+[err-not-invited]
+other = "Not invited"
+
+[err-dingtalk-not-enabled]
+other = "DingTalk is not enabled"
+
+[err-custom-not-enabled]
+other = "OAuth is not enabled"
+
+[err-user-limit]
+other = "User limit reached"
\ No newline at end of file
diff --git a/backend/go.mod b/backend/go.mod
index bc68b7e..f354304 100644
--- a/backend/go.mod
+++ b/backend/go.mod
@@ -4,7 +4,7 @@ go 1.23.7
 
 require (
 	entgo.io/ent v0.14.4
-	github.com/GoYoko/web v1.1.0
+	github.com/GoYoko/web v1.3.0
 	github.com/cloudwego/eino v0.3.51
 	github.com/cloudwego/eino-ext/components/model/openai v0.0.0-20250710065240-482d48888f25
 	github.com/doquangtan/socket.io/v4 v4.0.8
diff --git a/backend/go.sum b/backend/go.sum
index 055bcf6..1b82297 100644
--- a/backend/go.sum
+++ b/backend/go.sum
@@ -8,8 +8,8 @@ github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg
 github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
 github.com/DATA-DOG/go-sqlmock v1.5.0/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
-github.com/GoYoko/web v1.1.0 h1:nIbtol5z0Y03d0nHsvGjv+W0fgmFRGUL8fzPN3kmrOY=
-github.com/GoYoko/web v1.1.0/go.mod h1:DL9/gvuUG2jcBE1XUIY+9QBrrhdshzPEdxMCzR9jUHo=
+github.com/GoYoko/web v1.3.0 h1:f59n1xkyEUjy/wF0ilX86oJWpyQrJJQQzGkRIve1YJw=
+github.com/GoYoko/web v1.3.0/go.mod h1:DL9/gvuUG2jcBE1XUIY+9QBrrhdshzPEdxMCzR9jUHo=
 github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
 github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
 github.com/agext/levenshtein v1.2.3 h1:YB2fHEn0UJagG8T1rrWknE3ZQzWM06O8AMAatNn7lmo=