diff --git a/src/User b/src/User
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/src/User
@@ -0,0 +1 @@
+
diff --git a/src/constants/role.constant.ts b/src/constants/role.constant.ts
new file mode 100644
index 0000000..a700270
--- /dev/null
+++ b/src/constants/role.constant.ts
@@ -0,0 +1,10 @@
+export const ROLES = {
+  ADMIN: 'admin',     // Full administrative privileges
+  STUDENT: 'student', // Standard student privileges
+  BASIC: 'user',      // Basic, non-privileged user
+} as const;
+
+export const ROLE_ERRORS = {
+  FORBIDDEN: 'Access denied: insufficient role permissions.',
+  UNAUTHORIZED: 'User must be authenticated.',
+} as const;