goldenChat base source add

backend/src/main/java/com/goldenchart/controller/AuthController.java

@@ -0,0 +1,45 @@
+package com.goldenchart.controller;
+
+import com.goldenchart.dto.LoginRequest;
+import com.goldenchart.dto.LoginResponse;
+import com.goldenchart.dto.MenuPermissionsResponse;
+import com.goldenchart.service.AuthService;
+import com.goldenchart.service.RolePermissionService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/auth")
+@RequiredArgsConstructor
+public class AuthController {
+
+    private final AuthService authService;
+    private final RolePermissionService rolePermissionService;
+
+    @PostMapping("/login")
+    public ResponseEntity<LoginResponse> login(@RequestBody LoginRequest body) {
+        return ResponseEntity.ok(authService.login(body.getUsername(), body.getPassword()));
+    }
+
+    @GetMapping("/me")
+    public ResponseEntity<LoginResponse> me(
+            @RequestHeader(value = "X-User-Id", required = false) String userIdHeader) {
+        Long userId = parseUserId(userIdHeader);
+        return authService.me(userId)
+                .map(ResponseEntity::ok)
+                .orElse(ResponseEntity.notFound().build());
+    }
+
+    /** 로그인 사용자 역할·메뉴 권한 (미로그인 시 GUEST) */
+    @GetMapping("/menu-permissions")
+    public MenuPermissionsResponse menuPermissions(
+            @RequestHeader(value = "X-User-Id", required = false) String userIdHeader) {
+        return rolePermissionService.resolveForUserId(parseUserId(userIdHeader));
+    }
+
+    private Long parseUserId(String header) {
+        if (header == null || header.isBlank()) return null;
+        try { return Long.parseLong(header); } catch (NumberFormatException e) { return null; }
+    }
+}