feat: browser router add custom error

src/browser.ts

@@ -0,0 +1,9 @@
+export { Route, QueryRouter, QueryRouterServer } from './route.ts';
+
+export { Rule, Schema, createSchema } from './validator/index.ts';
+
+export type { RouteContext, RouteOpts } from './route.ts';
+
+export type { Run } from './route.ts';
+
+export { CustomError } from './result/error.ts';