Add authentication

src/main/kotlin/top/fatweb/api/handler/JwtAccessDeniedHandler.kt

@@ -0,0 +1,19 @@
+package top.fatweb.api.handler
+
+import jakarta.servlet.http.HttpServletRequest
+import jakarta.servlet.http.HttpServletResponse
+import org.springframework.security.access.AccessDeniedException
+import org.springframework.security.web.access.AccessDeniedHandler
+import org.springframework.stereotype.Component
+
+@Component
+class JwtAccessDeniedHandler : AccessDeniedHandler {
+    override fun handle(
+        request: HttpServletRequest?,
+        response: HttpServletResponse?,
+        accessDeniedException: AccessDeniedException?
+    ) {
+        request?.setAttribute("filter.error", accessDeniedException)
+        request?.getRequestDispatcher("/error/thrown")?.forward(request, response)
+    }
+}