UPDATE AuthController to return user details with APIResponse; ADD user fetching logic in MainLayout and Topbar

src/main/java/com/ddf/vodsystem/configuration/SecurityConfig.java

@@ -1,5 +1,6 @@
 package com.ddf.vodsystem.configuration;
 
+import com.ddf.vodsystem.security.CustomOAuth2UserService;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -46,4 +47,4 @@ public class SecurityConfig {
         return (request, response, authentication) -> response.sendRedirect(frontendUrl);
     }
 
-}
+}

src/main/java/com/ddf/vodsystem/controllers/AuthController.java

@@ -1,5 +1,8 @@
 package com.ddf.vodsystem.controllers;
 
+import com.ddf.vodsystem.entities.APIResponse;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.security.oauth2.core.user.OAuth2User;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -13,7 +16,21 @@ import java.util.Map;
 public class AuthController {
 
     @GetMapping("/user")
-    public Map<String, Object> user(@AuthenticationPrincipal OAuth2User principal) {
-        return principal.getAttributes();
+    public ResponseEntity<APIResponse<Map<String, Object>>> user(@AuthenticationPrincipal OAuth2User principal) {
+        if (principal == null) {
+            return ResponseEntity.status(HttpStatus.FORBIDDEN).
+                    body(new APIResponse<>(
+                            "error", 
+                            "User not authenticated", 
+                            null
+                    ));
+        }
+
+        return ResponseEntity.ok(
+                new APIResponse<>("success", "User details retrieved successfully", Map.of(
+                        "name", principal.getAttribute("name"),
+                        "email", principal.getAttribute("email"))
+                )
+        );
     }
-}
+}

src/main/java/com/ddf/vodsystem/security/CustomOAuth2UserService.java

@@ -1,4 +1,4 @@
-package com.ddf.vodsystem.configuration;
+package com.ddf.vodsystem.security;
 import com.ddf.vodsystem.entities.User;
 import com.ddf.vodsystem.repositories.UserRepository;