feat: add IM file policy and org exports

server/internal/router/genrouter/im_file_policy.go

@@ -0,0 +1,7 @@
+package genrouter
+
+import "hotgo/internal/controller/admin/sys"
+
+func init() {
+	LoginRequiredRouter = append(LoginRequiredRouter, sys.ImFilePolicy) // IM文件策略
+}